400-101 | A Review Of Validated 400-101 practice test

Q1. Which three components are in a MPLS header?

A. A 4-bit experimental use field

B. An 8-bit TTL

C. A 4-bit label stack entry

D. A 2-bit bottom of stack

E. A 3-bit experimental use field

F. A 20-bit label

Answer: B,E,F

Q2. Two routers are connected on a PPP link using CHAP authentication by default which value will

the routers use as t identification on the link?

A. Their host names

B. Their IP address on the connected link

C. Their interface numbers

D. Their serial numbers

Answer: A

Q3. Which two statements about logging are true? (Choose two)

A. The mnemonic can refer to a hardware device, a protocol, or a software module.

B. When you enable sequence numbers, the datetime timestamp is disabled automatically by default.

C. Log messages include a mnemonic that describes the message.

D. A log messageu2021s facility value indicates the hardware on which the log message was generated.

E. Logs can be displayed on the console or on a remote terminal.

F. A log message can include both uptime and the datetime timestamp.

Answer: C,E

Q4. Which route types are redistributed from OSPF into BGP by default?

A. AII route types

B. External routes only

C. lnter-area routes only

D. lntra-area routes only

E. lntra-area routes and inter-area routes

Answer: E

Q5. Refer to the exhibit.

After you configure the given IP SLA on a Cisco router, you note that the device is unable to failover to the backup route even when pings to 10.12.34.5 fail. What action can you take to correct the problem?

A. Change the ip route 0.0.0.0.0.0.0.0 192.168.1.153 200 command to ip route 0.0.0.0.0.0.0.0

192.168.1.153 12.

B. Change the ipsla schedule 12 life forever start-time now command to ipsla schedule 12 life forever start- time 00:12:00.

C. The track 12 ipsla 12 state command to track 12 ipsla 12 reachability.

D. Change the frequency 2 command to frecuency 12.

Answer: C

Q6. For which two purposes can RTCP be used (Choose two)

A. Collecting information about VoIP service quality

B. Authenticating RTP sessions

C. Providing encryption for RTP flows

D. Providing resource reservation service for VoIP traffic

E. Providing resource reservation service for VoIP traffic

F. Providing out-of-band statistics and control information for RTP sessions

Answer: A,F

Q7. Refer to the exhibit.

If R1 and R2 cannot establish an EIGRP neighbor adjacency, which reason for the problem is most likely true?

A. The auto-summary command under the route process is disabled

B. The hello-interval and hold-time values are invalid

C. The MTU value between R1 and R2 is too small

D. The primary networks are on different subnets

Answer: D

Q8. What characteristic of OSPFv3 LSAs enables support for prefix suppression?

A. Router-LSAs and Network-LSAs do not contain topology information

B. Router LSAs and Network-LSAs do not contain prefix information

C. Router-LSAs and Network-LSAs are flooded into the entire OSPF domain

D. Router-LSAs and Network-LSAs are flooded only on the local link

Answer: B

Q9. On a network using DiffServ, which option refers to the actions that applied to a packet as it moves through the network?

A. DSCP

B. PHB

C. Code-point

D. IP-precedence

Answer: A

Q10. Which feature must be enabled prior to enabling the IGM P Snooping Querier?

A. PIM-SM

B. SSM

C. IP helper

D. IGMP Snooping

Answer: D