[2021-New] Cisco 400-101 Dumps With Update Exam Questions (31-40)

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Q1. Which statement is true about conditional advertisements?

A. Conditional advertisements create routes when a predefined condition is met.

B. Conditional advertisements create routes when a predefined condition is not met.

C. Conditional advertisements delete routes when a predefined condition is met.

D. Conditional advertisements create routes and withhold them until a predefined condition is met.

E. Conditional advertisements do not create routes, they only withhold them until a predefined condition is met.

Answer: E

Explanation:

The Border Gateway Protocol (BGP) conditional advertisement feature provides additional control of route advertisement, depending on the existence of other prefixes in the BGP table. Normally, routes are propagated regardless of the existence of a different path. The BGP conditional advertisement feature uses the non-exist-map and the advertise-map keywords of the neighbor advertise-map command in order to track routes by the route prefix. If a route prefix is not present in output of the non-exist-map command, then the route specified by the advertise-map command is announced. This feature is useful for multihomed networks, in which some prefixes are advertised to one of the providers only if information from the other provider is not present (this indicates a failure in the peering session or partial reachability).

Reference: http://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/16137-cond-adv.html

Q2. Refer to the exhibit.

Assume that Cisco Discovery Protocol is supported and enabled only on switches A and C.

Which information is returned when you issue the command show cdp neighbors on switch C?

A. a limited amount of information about switch B

B. neighbor details for switch A

C. neighbor details for switch B

D. neighbor details for switch C

Answer: B

Q3. Into which two pieces of information does the LISP protocol split the device identity? (Choose two.)

A. Routing Locator

B. Endpoint Identifier

C. Resource Location

D. Enterprise Identifier

E. LISP ID

F. Device ID

Answer: A,B

Q4. Refer to the exhibit.

All of the routers on this network are running RIP. If you edit the R3 RIP process configuration to reduce the number of hops from R3 to R1, which statement about the configuration change is true?

A. Configuring no passive-interface for GigabitEthernet0/0 in the R3 RIP process reduces the number of hops to R1 by 2.

B. Configuring no passive-interface for GigabitEthernet0/0 in the R3 RIP process reduces the number of hops to R1 by 1.

C. Configuring no passive-interface for GigabitEthernet0/1 in the R3 RIP process reduces the number of hops to R1 by 3.

D. Configuring no passive-interface for GigabitEthernet0/1 in the R3 RIP process reduces the number of hops to R1 by 1.

Answer: A

Explanation:

By changing the link from R3 to R2 to not be passive, traffic can then take the direct route from R3-R2-R1 instead of the longer path of R3-R6-R5-R4-R1, resulting in two less hops.

Q5. Which two statements about the protected ports feature and the private VLAN feature are true? (Choose two.)

A. The protected ports feature is limited to the local switch.

B. The protected ports feature can isolate traffic between two "protected" ports on different switches.

C. The private VLAN feature is limited to the local switch.

D. The private VLAN feature prevents interhost communication within a VLAN across one or more switches.

Answer: A,D

Explanation:

Protected Ports (PVLAN Edge) In some network environments, there is a requirement for no traffic to be seen or forwarded between host(s) on the same LAN segment, thereby preventing interhost communications. The PVLAN edge feature provisions this isolation by creating a firewall-like barrier, thereby blocking any unicast, broadcast, or multicast traffic among the protected ports on the switch. Note that the significance of the protected port feature is limited to the local switch, and there is no provision in the PVLAN edge feature to isolate traffic between two "protected" ports located on different switches. For this purpose, the PVLAN feature can be used.

Reference: http://www.ciscopress.com/articles/article.asp?p=1181682&seqNum=2

Q6. Which two statements about static NAT are true? (Choose two.)

A. An outside local address maps to the same outside global IP address.

B. An inside local address maps to a different inside global IP address.

C. An outside local address maps to a different outside global IP address.

D. An inside local address maps to the same inside global IP address.

Answer: A,D

Explanation:

Example found at the reference link below: Reference: http://www.cisco.com/c/en/us/support/docs/ip/network-address-translation-nat/4606-8.html

Q7. DRAG DROP

Drag and drop each PHB on the left to the functionality it performs on the right.

Answer:

Q8. Which two options are required parts of an EEM policy? (Choose two.)

A. event register keyword

B. body

C. environment must defines

D. namespace import

E. entry status

F. exit status

Answer: A,B

Explanation:

EEM policies require two parts: the event register keyword and the body. The remaining

parts of the policy are optional: environment must defines, namespace import, entry status,

and exit status (Figure 5).

Figure 5. EEM Policy Parts

Reference: http://www.cisco.com/c/en/us/products/collateral/ios-nx-os-software/ios-

embedded-event-manager-eem/config_guide_eem_configuration_for_cisco_integrated_services_router_platforms.htm

Q9. Which three address family types does EIGRP support? (Choose three.)

A. IPv4 unicast

B. IPv4 multicast

C. IPv6 unicast

D. IPv6 multicast

E. IPv4 anycast

F. IPv6 anycast

Answer: A,B,C

Q10. Refer to the exhibit.

Service provider SP 1 is running the MPLS-VPN service. The MPLS core network has MP-BGP configured with RR-1 as route reflector. What will be the effect on traffic between PE1 and PE2 if router P1 goes down?

A. No effect, because all traffic between PE1 and PE2 will be rerouted through P2.

B. No effect, because P1 was not the only P router in the forwarding path of traffic.

C. No effect, because RR-1 will find an alternative path for MP-BGP sessions to PE-1 and PE-2.

D. All traffic will be lost because RR-1 will lose the MP-BGP sessions to PE-1 and PE-2.

Answer: D

Explanation:

If the connection to the route reflector goes down, then routes from PE-1 will not get advertised to PE2, and vice versa. Route reflectors are critical in an MPLS VPN such as the one shown, which is why it is a best practice to have multiple route reflectors in this kind of network.