Cisco 642-551 Exam - CertifySky.com

Free 642-551 Sample Questions:

1.Drag Drop question

Drag and drop question. Drag the items to the proper locations.
Answer:


2.Drag Drop question

Drag and drop question. Drag the items to the proper locations.
Answer:


3.What are the three common types of user accounts on the Cisco IDS/IPS? (Choose three.)
A:administrator
B:guest
C:operator
D:viewer
E:privileged
F:executive
Answer: A, C, D

4.Which authentication method is based on the 802.1x authentication framework, and mitigates several of the weaknesses by using dynamic WEP and sophisticated key management on a per-packet basis?
A: PAP
B: CHAP
C: LEAP
D: ARAP
Answer: C

5.Which command sets the minimum length of all Cisco IOS passwords?
A: password min-length length
B: min-length security length
C: enable secret min-length
D: security passwords min-length length
Answer: D

6.Which command would be used on the Cisco PIX Security Appliance to show the pool of addresses to be translated?
A: show nat
B: show xlate
C: show global
D: show conn
Answer: C

7.In which version did NTP begin to support cryptographic authentication?
A: version 5
B: version 4
C: version 3
D: version 2
Answer: C

8.During which phase of an attack does the attacker attempt to identify targets?
A: penetrate
B: propagate
C: persist
D: probe
E: paralyze
Answer: D

9.Which command is used to encrypt passwords in the router configuration file?
A: service password-encryption
B: password-encryption
C: enable password encryption
D: encrypt password
Answer: A

10.What are the four critical services of IPSec functions? (Choose four.)
A:replay protection
B:confidentiality
C:data integrity
D:data mining
E:origin authentication
F:anti-replay protection
Answer: B, C, E, F