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New Cisco 400-101 Exam Dumps Collection (Question 15 - Question 21)
New Questions 15
Which statement describes the operation of the Generalized TTL Security Mechanism (GTSM), used by routing protocols to prevent some types of attack?
A. An MD5 hash of the received TTL, source IP, destination IP, protocol , and shared key must match
B. The TTL in a received packet must be a low value (typically 1-2)
C. The TTL in a received packet must be a high value (typically 254-255)
D. Both end systems compute an MD5 hash based on the TTL and a shared secret. If the received and local value differ, the packet is dropped
Answer: C
New Questions 16
When you implement PfR, which IP SLA probes is used to determine the MOS?
A. throughput
B. jitter
C. latency
D. packet loss
Answer: B
New Questions 17
Which technology uses MPLS to provide 1Pv6 connectivity o customers in the core network
without the need for dual stack?
A. 6to4
B. NAT64
C. NAT
D. SPE
Answer: D
New Questions 18
Which MLD message type does a host send to join rrulticast groups?
A. Join/prune
B. Hello
C. Query
D. Done
E. Report
F. Assert
Answer: E
New Questions 19
Which three types of Layer 2 isolation do private VLANs provide? (choose three.
A. Community
B. Isolated
C. Blocking
D. Promiscuous
E. Private group
Answer: A,B,D
New Questions 20
Which two statements about CEF polarization are true? (Choose two)
A. The AND operation is performed on the higher-order bits of the source and destination IP address
B. A single link is chosen for all flows
C. The AND operation is performed on the lower-order bits of the source and destination IP address
D. After the XOR process, the flow is processed in the distribution Layer with a different hashing algorithm
E. It can be prevented by alternating the hashing inputs
F. When enabled, it allows all links to be used efficiently for different traffic flows
Answer: B,E
New Questions 21
Which three fields are part of a TCN BPDU? (choose three.)
A. protocol ID
B. version
C. type
D. max-age
E. flags
F. message age
Answer: A,B,C
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