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Basic Virtual Private Network - VPN MCQ

1. Many outgoing email servers use ____ as a set of rules for communicating with other computers.

HTML

ISP

POP

SMTP

Answer

Correct Answer: SMTP

Note: This Question is unanswered, help us to find answer for this one

2. The biggest advantage to a virtual network approach is _ and _ on a global scale.

Coordination; organization

Communication; organization

Flexibility; competitiveness

Flexibility; coordination

Answer

Correct Answer: Flexibility; competitiveness

Note: This Question is unanswered, help us to find answer for this one

3. Vpns are known as a _____ protocol.

Connectionless

Data link layer

Tunneling

Network layer

Answer

Correct Answer: Tunneling

Note: This Question is unanswered, help us to find answer for this one

4. Data sent through a virtual private network (vpn) can be encrypted using the _____.

Layer Two Tunneling Protocol

Transmission Control Protocol

Internet Control Message Protocol

User Datagram Protocol

Answer

Correct Answer: Layer Two Tunneling Protocol

Note: This Question is unanswered, help us to find answer for this one

5. Which of the following protocols is supported by IPSec?

TCP/IP

AppleTalk

IPX

NetBEUI

Answer

Correct Answer: TCP/IP

Note: This Question is unanswered, help us to find answer for this one

6. Which of the following VPN protocols support multiple tunnels?

PPTP

L2TP

IPSec

NTP

Answer

Correct Answer: L2TP
IPSec

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

7. Which of the following VPN protocols are vulnerable to Brute Force attack?

PPTP

PTPP

IPSec

L2TP

LTTP

Answer

Correct Answer: L2TP

Note: This Question is unanswered, help us to find answer for this one

8. How many key combinations are possible if the length of the key is 56 bits?

255

2128

2256

2512

Answer

Correct Answer: 255

Note: This Question is unanswered, help us to find answer for this one

9. Which of the following VPN protocols is resistant to Denial-of-Service attack?

PPTP

L2TP

IPSec

L2F

Answer

Correct Answer: IPSec

Note: This Question is unanswered, help us to find answer for this one

10. Which port is used by PPTP?

500

550

1723

Answer

Correct Answer: 1723

Note: This Question is unanswered, help us to find answer for this one

11. Which protocol is used by PPTP?

TCP

UDP

RPC

FTP

Answer

Correct Answer: TCP

Note: This Question is unanswered, help us to find answer for this one

12. At which layer do SSL VPNs work in the OSI model?

At the Application Layer

At the Presentation Layer

At the Session Layer

At the Transport Layer

At the Network Layer

Answer

Correct Answer: At the Session Layer

Note: This Question is unanswered, help us to find answer for this one

13. By which of the following can Man-in-the-middle attack be prevented?

IKE

Digital Signatures

Cryptography

Anti-virus

Answer

Correct Answer: Digital Signatures

Note: This Question is unanswered, help us to find answer for this one

14. How can you overcome the limitation of IPSec to support broadcast and multicast?

Through Multicast Encryption

Through Broadcast Encryption

It cannot support them

Through GRE Encapsulation

Answer

Correct Answer: Through GRE Encapsulation

Note: This Question is unanswered, help us to find answer for this one

15. What is VPDN?:

Virtual Private Dial-up Network

Virtual Private Digital Network

Virtual Personal Dial-up Network

Virtual Personal Digital Network

Answer

Correct Answer: Virtual Private Dial-up Network

Note: This Question is unanswered, help us to find answer for this one

16. Which of the following is a characteristic of MPLS VPN?

It can be connection-less

It can be connection -oriented

It can be connection -less or connection oriented

It can be both connection -less and connection-oriented

Answer

Correct Answer: It can be connection-less

Note: This Question is unanswered, help us to find answer for this one

17. Which of the following is stored by MPLS in the routing table?

IP address

ARP

Labels

MAC address

Answer

Correct Answer: Labels

Note: This Question is unanswered, help us to find answer for this one

18. What is CRL?

Certificate Return List

Certificate Revised List

Certificate Revocation List

Certificate Registration List

Answer

Correct Answer: Certificate Revocation List

Note: This Question is unanswered, help us to find answer for this one

19. Which of the following protocols is used by PPTP to tunnel packets?

L2TP

L2F

PPP

PTPP

Answer

Correct Answer: PPP

Note: This Question is unanswered, help us to find answer for this one

20. How does anti-replay mechanism work in IPSec Technology?

By Encryption

By Hashing

By Tracking Sequence Numbers

By Authenitcation

Answer

Correct Answer: By Tracking Sequence Numbers

Note: This Question is unanswered, help us to find answer for this one

21. To which of the following attacks is Diffie-Hellman algorithm vulnerable?

Brute Force attack

Dictionary attacks

Spoofing attack

Man-in-the-middle attack

Answer

Correct Answer: Man-in-the-middle attack

Note: This Question is unanswered, help us to find answer for this one

22. Which of the following protocols supports IKE?

L2TP

PPTP

PTPP

IPSec

Answer

Correct Answer: IPSec

Note: This Question is unanswered, help us to find answer for this one

23. Which port is used for NAT-Traversal?

TCP 4500

TCP 4600

UDP 4500

UDP 4600

Answer

Correct Answer: UDP 4500

Note: This Question is unanswered, help us to find answer for this one

24. Which of the following tasks can be performed by GRE?

Encryption

Authentication

Integrity Check

Encapsulation

Answer

Correct Answer: Encapsulation

Note: This Question is unanswered, help us to find answer for this one

25. Which protocol is used by L2TP?

TCP

UDP

RPC

FTP

Answer

Correct Answer: UDP

Note: This Question is unanswered, help us to find answer for this one

26. How many phases are there in IKE (Internet Key Exchange)?

Answer

Correct Answer: 2

Note: This Question is unanswered, help us to find answer for this one

27. Which of the following attacks is resembled by the following statement: "Inserting the packets of same sequence number into the data stream between a source and destination computer"?

DNS poisioning

Landc attack

Smurf attack

Replay attack

Answer

Correct Answer: Replay attack

Note: This Question is unanswered, help us to find answer for this one

28. How many tunnels are supported by PPTP?

Answer

Correct Answer: 1

Note: This Question is unanswered, help us to find answer for this one

29. How many keys are required if two parties communicate using Symmetric Cryptography?

One

Two

Three

Four

Answer

Correct Answer: One

Note: This Question is unanswered, help us to find answer for this one

30. How many modes are there in IKE Phase 1?

Answer

Correct Answer: 2

Note: This Question is unanswered, help us to find answer for this one

31. Which port is used by IKE(Internet Key Exchange) ?

TCP 550

TCP 500

UDP 550

UDP 500

Answer

Correct Answer: UDP 500

Note: This Question is unanswered, help us to find answer for this one

32. VPDN is a/an

Application Layer VPN

Session Layer VPN

Transport Layer VPN

Network Layer VPN

Answer

Correct Answer: Network Layer VPN

Note: This Question is unanswered, help us to find answer for this one

33. Which of the following is an Asymmetric algorithm?

MD5

El Gamal

IDEA

SHA-1

Answer

Correct Answer: El Gamal

Note: This Question is unanswered, help us to find answer for this one

34. The ability of a SSL VPN to receive user requests and relay them to internal server is_________.

Relaying

Reverse Relaying

Reverse Proxying

Forwarding

Answer

Correct Answer: Reverse Proxying

Note: This Question is unanswered, help us to find answer for this one

35. What is MPLS network?

Multi Protocol Layer Switching

Multi Protocol Label Switching

Multi Protocol Link Switching

Multi Protocol Label System

Multi Protocol Layer System

Answer

Correct Answer: Multi Protocol Label Switching

Note: This Question is unanswered, help us to find answer for this one

36. The act of learning information about the target network is called?

DoS attack

Encryption

Repudiation

Network reconnaissance

Answer

Correct Answer: Network reconnaissance

Note: This Question is unanswered, help us to find answer for this one

37. How does IPSec handle the confidentiality of a message?

Through encryption

Through authentication

Through hashing

Through sequence numbers

Answer

Correct Answer: Through encryption

Note: This Question is unanswered, help us to find answer for this one

38. Which of the following port is used by L2F?

UDP 1702

UDP 1701

TCP 1702

TCP 1701

Answer

Correct Answer: UDP 1701

Note: This Question is unanswered, help us to find answer for this one

39. Which of the following ports is used by SSL?

443

550

4500

Answer

Correct Answer: 443

Note: This Question is unanswered, help us to find answer for this one

40. Which of the following is a Hashing algorithm?

Diffie-Hellman

3-DES

DES

MD5

Answer

Correct Answer: MD5

Note: This Question is unanswered, help us to find answer for this one

41. Which of the following services should be disabled on an MPLS VPN router?

Finger

TCP keepalives

NTP

Password encryption service

CDP

Answer

Correct Answer: Finger
NTP
CDP

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

42. Which of the following symmetric algorithms has variable key length?

MD5

Triple DES

DES

Rivest Cipher 4

Answer

Correct Answer: Rivest Cipher 4

Note: This Question is unanswered, help us to find answer for this one

43. Which of the following authorities issues Digital Certificates?

Digital Certificate Authority

Certificate Authority

Central Certificate Authority

Central Certificate Team

Answer

Correct Answer: Certificate Authority

Note: This Question is unanswered, help us to find answer for this one

44. To which of the following attacks is IPSec vulnerable to?

Spoofing

DoS attack

Brute Force attack

Key Management attack

Answer

Correct Answer: Key Management attack

Note: This Question is unanswered, help us to find answer for this one

45. Which of the following statements is true of the Transport mode in IPSec?

IPSec header is inserted between IP and Lower layer header

IPSec header is inserted between IP and Upper layer header

There is no IPSec header

Only Authentication header is inserted

Only Encapsulating Security Payload is inserted

Answer

Correct Answer: IPSec header is inserted between IP and Upper layer header

Note: This Question is unanswered, help us to find answer for this one

46. Which of the following protocols is used for key management?

IKE

L2TP

PPTP

IPSec

Answer

Correct Answer: IKE

Note: This Question is unanswered, help us to find answer for this one

47. Which port is used by L2TP?

1701

1702

550

4500

Answer

Correct Answer: 1701

Note: This Question is unanswered, help us to find answer for this one

48. Which of the following measures should be taken to make a DoS resistant network

Correct Device Positioning

Correct Bandwidth Planning

Service Overprovisioning

Anti-DoS solutions

Answer

Correct Answer: Correct Device Positioning
Correct Bandwidth Planning
Service Overprovisioning
Anti-DoS solutions

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

49. Which of the following are the Layer 3 VPNs?

MPLS

PPTP

ATM

IPSec

Answer

Correct Answer: MPLS
IPSec

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

50. Which of the following are the features of an MPLS VPN?

It is connection-less

It is encrypting

It is non-encrypting

It is scalable

Answer

Correct Answer: It is connection-less
It is non-encrypting
It is scalable

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

51. Which of the following are widely used account databases?

Primary Domain Controller

RADIUS server

TACACS server

LDAP

Novell Directory Service

Answer

Correct Answer: Primary Domain Controller
RADIUS server
TACACS server
LDAP
Novell Directory Service

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

52. Which of the following are feartures of the IPSec Technology?

Confidentiality

Availability

Integrity

Anti-replay

Answer

Correct Answer: Confidentiality
Availability
Integrity
Anti-replay

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

53. Which of the following are types of VPN attacks?

DoS attack

Attack against VPN protocols

Cryptanalysis attacks

Security threats to VPN elements

Answer

Correct Answer: DoS attack
Attack against VPN protocols
Cryptanalysis attacks
Security threats to VPN elements

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

54. Which of the following protocols are supported by VPDN?

PPTP

PTPP

L2TP

L2F

LF2

Answer

Correct Answer: PPTP
L2TP
L2F

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

55. Which of the following sources can be used for testing interoperability between VPN vendors?

VPNC

IPSec-WIT

CERT

ICSA Labs

Answer

Correct Answer: VPNC
IPSec-WIT
ICSA Labs

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

56. Which of the following are the authentication methods used in IPSec?

Hashing algorithm

Pre-shared keys

Digital Certificates

Digital Signatures

Answer

Correct Answer: Pre-shared keys
Digital Certificates

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

57. Which of the following are functions of the keys?

Repudiation

Encryption

Integrity

Authentication

Answer

Correct Answer: Encryption
Integrity
Authentication

Note: This question has more than 1 correct answers

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58. Which of the following protocols can use authentication protocols such as RADIUS and TACACS+?

PPTP

L2TP

L2F

LT2P

Answer

Correct Answer: L2TP
L2F

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

59. Which of the following are advantages of DES and 3DES?

They use symmetric keys

They use asymmetric keys

They make encryption faster

They make encryption slow

Answer

Correct Answer: They use symmetric keys
They make encryption faster

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

60. Which of the following features should be evaluated in a VPN solution?

Connectivity

Protection

Authentication

Application Compatibility

Management

Answer

Correct Answer: Connectivity
Protection
Authentication
Application Compatibility
Management

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

61. Which of the following are advantages of MPLS VPN?

It supports various topologies

It is scalable and flexible

It offers encryption

It is easy to implement and configure

Answer

Correct Answer: It supports various topologies
It is scalable and flexible
It is easy to implement and configure

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

62. Which of the following are the IPSec security protocols?

Encapsulating Security Payload

Encapsulating Security Protocol

Authentication Heade

Authorization Header

Answer

Correct Answer: Encapsulating Security Payload
Authentication Heade

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

63. Which of the following measures are taken by IPSec VPN to combat man-in-the-middle attack?

Device authentication

Using a firewall

Integrity checking

Encryption

Answer

Correct Answer: Device authentication
Integrity checking
Encryption

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

64. Which of the following are the best practices to choose a VPN service provider?

It should offer strong encryption mechanism

It should support for Layer 2 & Layer 3 tunneling protocols

It should offer system level security

It should have strong network backbone

Answer

Correct Answer: It should offer strong encryption mechanism
It should support for Layer 2 & Layer 3 tunneling protocols
It should offer system level security
It should have strong network backbone

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

65. Which of the following are PPTP vulnerabilities?

Cleartext passwords

Key Management

GRE Encapsulation

Encryption

Answer

Correct Answer: Cleartext passwords
GRE Encapsulation

Note: This question has more than 1 correct answers

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66. Which of the following can be threats in an MPLS VPN?

Intrusions from the internet

Intrusions from an attached VPN

DoS attack

Internal threats

Answer

Correct Answer: Intrusions from the internet
Intrusions from an attached VPN
DoS attack
Internal threats

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

67. Which of the following are components of L2TP Transactions?

Network Access Server

L2TP access concentrator

L2TP Network Client

L2TP Network Server

Answer

Correct Answer: Network Access Server
L2TP access concentrator
L2TP Network Server

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

68. Which of the following are the most common VPN problems?

Inablity to connect VPN server

Inablity to connect hosts beyond VPN server

Inablity to browse the LAN after log in

Internet Connectivity

Answer

Correct Answer: Inablity to connect VPN server
Inablity to connect hosts beyond VPN server
Inablity to browse the LAN after log in
Internet Connectivity

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

69. Which of the following are the best practices for VPN security?

Running virus scans on VPN servers and clients

Reviewing the logs

Disabling the account of the employee who leaves the organisation

Scanning the VPN server for vulnerablities

Using IDS

Answer

Correct Answer: Running virus scans on VPN servers and clients
Reviewing the logs
Disabling the account of the employee who leaves the organisation
Scanning the VPN server for vulnerablities
Using IDS

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

70. Which of the following are the components of a general MPLS VPN structure?

Customer Edge Router

Provider Edge Router

Service Provider

Customer

Provider Router

Answer

Correct Answer: Customer Edge Router
Provider Edge Router
Service Provider
Customer
Provider Router

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

71. Which of the following protocols can be encapsulated with GRE?

AppleTalk

IPX

DECnet

Answer

Correct Answer: AppleTalk
IP
IPX
DECnet

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

72. Which of the following are IPSec modes?

Hybrid Mode

Virtual Mode

Tunnel Mode

Transport Mode

Answer

Correct Answer: Tunnel Mode
Transport Mode

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

73. Which of the following ways can be used to generate SSL certificates?

Self-generated

Central SSL Certificate Authority

SSL Authority

Certificate Authority

Answer

Correct Answer: Self-generated
Certificate Authority

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

74. Which of the following are the most important issues in key management?

Key Generation

Key Encryption

Key Distribution

Key Backup

Answer

Correct Answer: Key Generation
Key Distribution
Key Backup

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

75. Which of the following topologies are possible in an IPSec VPN?

Hub and Spoke Topology

Bus Topology

Full Mesh Topology

Ring Topology

Answer

Correct Answer: Hub and Spoke Topology
Full Mesh Topology

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

76. Which of the following protocols are supported by PPTP?

TCP/IP

AppleTalk

IPX

NetBEUI

Answer

Correct Answer: TCP/IP
IPX
NetBEUI

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

77. Which of the following are the security concerns while using PPTP?

Session Hijacking

Data Manipulation

No Header Information Protection

Weak Encryption

Answer

Correct Answer: Session Hijacking
Data Manipulation
No Header Information Protection
Weak Encryption

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

78. Which of the following key lengths are supported by AES?

128

192

256

512

1024

Answer

Correct Answer: 128
192
256

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

79. Which of the following are the components of the VPN?

Authentication

Encapsulation Method

Data Encryption

Packet Integrity

Key Management

Answer

Correct Answer: Authentication
Encapsulation Method
Data Encryption
Packet Integrity
Key Management

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

80. Which of the following are categories of QoS?

Hybrid QoS

Integrated services

Best effort QoS

Differentiated services

Answer

Correct Answer: Integrated services
Best effort QoS
Differentiated services

Note: This question has more than 1 correct answers

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81. Which of the following are advantages of an SSL VPN?

No additional software is required at the client's side

Secure application access is possible from anywhere

A large number of Web browsers are supported

Several methods of authentication are supported

Answer

Correct Answer: No additional software is required at the client's side
Secure application access is possible from anywhere
A large number of Web browsers are supported
Several methods of authentication are supported

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

82. Which of the following statements are true of IPSec?

It can encrypt/decrypt IP traffic only

It can be used for authentication

It can be used for Layer 2 VPN protocol

It does not support multicast or broadcast

Answer

Correct Answer: It can encrypt/decrypt IP traffic only
It does not support multicast or broadcast

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

83. Which of the following are the types of VPN?

GRE

L2TP

PPTP

IPSec

MPLS

Answer

Correct Answer: GRE
L2TP
PPTP
IPSec
MPLS

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

84. Due to which of the following reasons do you need to revoke a certificate?

The private key used for authentication has been compromised

The identity certificate has been compromised

The certificate is no longer used

The certificate has expired

Answer

Correct Answer: The private key used for authentication has been compromised
The identity certificate has been compromised
The certificate is no longer used
The certificate has expired

Note: This question has more than 1 correct answers

Note: This Question is unanswered, help us to find answer for this one

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Basic Virtual Private Network - VPN MCQ

1. Many outgoing email servers use ____ as a set of rules for communicating with other computers.

2. The biggest advantage to a virtual network approach is _____ and _____ on a global scale.

3. Vpns are known as a _____ protocol.

4. Data sent through a virtual private network (vpn) can be encrypted using the _____.

5. Which of the following protocols is supported by IPSec?

6. Which of the following VPN protocols support multiple tunnels?

7. Which of the following VPN protocols are vulnerable to Brute Force attack?

8. How many key combinations are possible if the length of the key is 56 bits?

9. Which of the following VPN protocols is resistant to Denial-of-Service attack?

10. Which port is used by PPTP?

11. Which protocol is used by PPTP?

12. At which layer do SSL VPNs work in the OSI model?

13. By which of the following can Man-in-the-middle attack be prevented?

14. How can you overcome the limitation of IPSec to support broadcast and multicast?

15. What is VPDN?:

16. Which of the following is a characteristic of MPLS VPN?

17. Which of the following is stored by MPLS in the routing table?

18. What is CRL?

19. Which of the following protocols is used by PPTP to tunnel packets?

20. How does anti-replay mechanism work in IPSec Technology?

21. To which of the following attacks is Diffie-Hellman algorithm vulnerable?

22. Which of the following protocols supports IKE?

23. Which port is used for NAT-Traversal?

24. Which of the following tasks can be performed by GRE?

25. Which protocol is used by L2TP?

26. How many phases are there in IKE (Internet Key Exchange)?

27. Which of the following attacks is resembled by the following statement: "Inserting the packets of same sequence number into the data stream between a source and destination computer"?

28. How many tunnels are supported by PPTP?

29. How many keys are required if two parties communicate using Symmetric Cryptography?

30. How many modes are there in IKE Phase 1?

31. Which port is used by IKE(Internet Key Exchange) ?

32. VPDN is a/an

33. Which of the following is an Asymmetric algorithm?

34. The ability of a SSL VPN to receive user requests and relay them to internal server is_________.

35. What is MPLS network?

36. The act of learning information about the target network is called?

37. How does IPSec handle the confidentiality of a message?

38. Which of the following port is used by L2F?

39. Which of the following ports is used by SSL?

40. Which of the following is a Hashing algorithm?

41. Which of the following services should be disabled on an MPLS VPN router?

42. Which of the following symmetric algorithms has variable key length?

43. Which of the following authorities issues Digital Certificates?

44. To which of the following attacks is IPSec vulnerable to?

45. Which of the following statements is true of the Transport mode in IPSec?

46. Which of the following protocols is used for key management?

47. Which port is used by L2TP?

48. Which of the following measures should be taken to make a DoS resistant network

49. Which of the following are the Layer 3 VPNs?

50. Which of the following are the features of an MPLS VPN?

51. Which of the following are widely used account databases?

52. Which of the following are feartures of the IPSec Technology?

53. Which of the following are types of VPN attacks?

54. Which of the following protocols are supported by VPDN?

55. Which of the following sources can be used for testing interoperability between VPN vendors?

56. Which of the following are the authentication methods used in IPSec?

57. Which of the following are functions of the keys?

58. Which of the following protocols can use authentication protocols such as RADIUS and TACACS+?

59. Which of the following are advantages of DES and 3DES?

60. Which of the following features should be evaluated in a VPN solution?

61. Which of the following are advantages of MPLS VPN?

62. Which of the following are the IPSec security protocols?

63. Which of the following measures are taken by IPSec VPN to combat man-in-the-middle attack?

64. Which of the following are the best practices to choose a VPN service provider?

65. Which of the following are PPTP vulnerabilities?

66. Which of the following can be threats in an MPLS VPN?

67. Which of the following are components of L2TP Transactions?

68. Which of the following are the most common VPN problems?

69. Which of the following are the best practices for VPN security?

70. Which of the following are the components of a general MPLS VPN structure?

71. Which of the following protocols can be encapsulated with GRE?

72. Which of the following are IPSec modes?

73. Which of the following ways can be used to generate SSL certificates?

74. Which of the following are the most important issues in key management?

75. Which of the following topologies are possible in an IPSec VPN?

76. Which of the following protocols are supported by PPTP?

77. Which of the following are the security concerns while using PPTP?

78. Which of the following key lengths are supported by AES?

79. Which of the following are the components of the VPN?

2. The biggest advantage to a virtual network approach is _ and _ on a global scale.