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Exam 350-701 All Questions

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Exam 350-701 topic 1 question 426 discussion

Actual exam question from Cisco's 350-701
Question #: 426
Topic #: 1
[All 350-701 Questions]

An engineer is configuring IPsec VPN and needs an authentication protocol that is reliable and supports ACK and sequence. Which protocol accomplishes this goal?

  • A. AES-256
  • B. IKEv1
  • C. ESP
  • D. AES-192
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Suggested Answer: C 🗳️

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NoUserName1234
Highly Voted 2 years, 4 months ago
Answer 'C' : https://www.hypr.com/security-encyclopedia/encapsulating-security-payload-esp
upvoted 5 times
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ITVI
Most Recent 6 days, 19 hours ago
Selected Answer: B
Ack and Sequences is the keyword here so B for me.
upvoted 1 times
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Bubu3k
8 months, 3 weeks ago
Selected Answer: C
Ikev1 does not have acks, ikev2 does: https://learningnetwork.cisco.com/s/article/comparison-between-ikev1-and-ikev2
upvoted 1 times
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Rododendron2
10 months, 1 week ago
Selected Answer: C
ESP - it has ACK & sequence numbers, not IKEv1 But call it authentication protocol is misleading. Shame on you, Cisco
upvoted 1 times
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Rododendron2
11 months ago
Selected Answer: C
Has to be IKEv2 (ack is there) and ESP - so C
upvoted 1 times
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Tthurston1
11 months, 2 weeks ago
Selected Answer: B
ESP provides confidentiality, authentication, and integrity to IP Packets. It does NOT include mechanisms for acknowledging or sequencing messages - which is a requirement for this question. IKEv1 SUPPORTS acknowledgements and sequencing to ensure reliable delivery of messages during the negotiation process.
upvoted 1 times
Rododendron2
11 months ago
Neither IKEv1 or ESP has ACK messages. IKEv1 has 6 messages, to negotiate tunnel, that's all. ESP sure does have sequence numbers.
upvoted 1 times
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gorequill
1 year, 2 months ago
Selected Answer: C
https://www.rfc-editor.org/rfc/rfc7402.html
upvoted 2 times
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Ko13
1 year, 5 months ago
Selected Answer: B
Ikev1 does authentication and a has a handshake process https://www.cisco.com/c/es_mx/support/docs/security-vpn/ipsec-negotiation-ike-protocols/217432-understand-ipsec-ikev1-protocol.html
upvoted 2 times
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Modulator
1 year, 6 months ago
A,C and D are Encryption protocols... so B
upvoted 1 times
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spykasgr
1 year, 11 months ago
it is B ikev1
upvoted 1 times
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C (25%)
B (20%)
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