Chapter 7
IPsec VPN and IKEv1 Knowledge Quiz
Test your understanding of IPsec VPN concepts and IKEv1 policies with this comprehensive quiz. Perfect for networking enthusiasts and professionals alike, this quiz challenges your knowledge on encryption, authentication, and the inner workings of Virtual Private Networks.
Features:
- Multiple choice and checkbox questions
- In-depth coverage of IKEv1 Phase 1 and Phase 2
- Practical troubleshooting insights
Which of the following could be part of both an IKEv1 Phase 1 and IKEv1 Phase 2 policy? (Choose all that apply.)
MD5
AES
RSA
DH
How is it possible that a packet with a private Layer 3 destination address is forwarded over the Internet?
It is encapsulated into another packet, and the Internet only sees the outside valid IP destination address.
It cannot be sent. It will always be dropped.
The Internet does not filter private addresses, only some public addresses, based on policy.
NAT is used to change the destination IP address before the packet is sent.
What is the method for specifying the IKEv1 Phase 2 encryption method?
Crypto ACLs
Crypto isakmp policy
Crypto ipsec transform-set
RSA signatures
Which of the following potentially could be negotiated during IKEv1 Phase 2? (Choose all that apply.)
Hashing
DH group
Encryption
Authentication method
Which of the DH groups is the most prudent to use when security is of the utmost importance?
1
2
5
6
Which of the following is never part of an IKEv1 Phase 2 process?
Main mode
Specifying a hash (HMAC)
Running DH (PFS)
Negotiating the transform set to use
Which encryption method will be used to protect the negotiation of the IPsec (IKEv1 Phase 2) tunnel?
The one negotiated in the transform set.
The one negotiated for the IKEv1 Phase 2 tunnel.
The one negotiated in the ISAKMP policy.
There is no encryption during this time; that is why DH is used.
Which is the most secure method for authentication of IKEv1 Phase 1?
RSA signatures, using digital certificates to exchange public keys
PSK
DH group 5
Symmetrical AES-256
Which component is not placed directly in a crypto map?
Authentication policy
ACL
Transform set
PFS
Which of the following would cause a VPN tunnel using IPsec to never initialize or work correctly? (Choose all that apply.)
Incompatible IKEv1 Phase 2 transform sets
Incorrect pre-shared keys or missing digital certificates
Lack of interesting traffic
Incorrect routing
Which of the following IKE versions are supported by the Cisco ASA? (Choose all that apply.)
IKEv1
IKEv2
IKEv3
IKEv4
What is the purpose of NAT exemption?
To bypass NAT in the remote peer
To bypass NAT for all traffic not sent over the IPsec tunnel
To bypass NAT for traffic in the VPN tunnel
To never bypass NAT in the local or remote peer
Which of the following commands are useful when troubleshooting VPN problems in the Cisco ASA? (Choose all that apply.)
Show isakmp sa detail
Debug crypto ikev1 | ikev2
Show crypto ipsec sa detail
Show vpn-sessiondb
(True or False) The Cisco ASA cannot be configured with more than one IKEv1 or IKEv2 policy.
True
False
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