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Q471. How is the MRU for a multilink bundle determined?
A. It is negotiated by LCP.
B. It is manually configured on the multilink bundle.
C. It is manually configured on all physical interfaces of a multilink bundle.
D. It is negotiated by NCP.
E. It is negotiated by IPCP.
Answer: A
Q472. 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
Q473. Which three actions are required when configuring NAT-PT? (Choose three.)
A. Enable NAT-PT globally.
B. Specify an IPv4-to-IPv6 translation.
C. Specify an IPv6-to-IPv4 translation.
D. Specify a ::/96 prefix that will map to an IPv4 address.
E. Specify a ::/48 prefix that will map to a MAC address.
F. Specify a ::/32 prefix that will map to an IPv6 address.
Answer: B,C,D
Explanation:
The detailed steps on configuring NAY-PT is found at the reference link below:
Reference: http://www.cisco.com/c/en/us/td/docs/ios/ipv6/configuration/guide/12_4t/ipv6_12_4t_book/i p6-nat_trnsln.html
Q474. Refer to the exhibit.
This is the configuration of the ASBR of area 110.Which option explains why the remote ABR should not translate the type 7 LSA for the prefix 192.168.0.0/16 into a type 5 LSA?
A. The remote ABR translates all type 7 LSA into type 5 LSA, regardless of any option configured in the ASBR.
B. The ASBR sets the forwarding address to 0.0.0.0 which instructs the ABR not to translate the LSA into a type 5 LSA.
C. The ASBR originates a type 7 LSA with age equal to MAXAGE 3600.
D. The ABR clears the P bit in the header of the type 7 LSA for 192.168.0.0/16.
Answer: D
Explanation:
When external routing information is imported into an NSSA, LSA Type 7 is generated by the ASBR and it is flooded within that area only. To further distribute the external information, type 7 LSA is translated into type 5 LSA at the NSSA border. The P-bit in LSA Type 7 field indicates whether the type 7 LSA should be translated. This P-bit is automatically set by the NSSA ABR (also the Forwarding Address (FA) is copied from Type 7 LSA). The P-bit is not set only when the NSSA ASBR and NSSA ABR are the same router for the area. If bit P = 0, then the NSSA ABR must not translate this LSA into Type 5.
The nssa-only keyword instructs the device to instigate Type-7 LSA with cleared P-bit, thereby, preventing LSA translation to Type 5 on NSSA ABR device.
Note. If a router is attached to another AS and is also an NSSA ABR, it may originate a both a type-5 and a type-7 LSA for the same network. The type-5 LSA will be flooded to the backbone and the type-7 will be flooded into the NSSA. If this is the case, the P-bit must be reset (P=0) in the type-7 LSA so the type-7 LSA isn’t again translated into a type-5 LSA by another NSSA ABR.
Reference: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_ospf/configuration/15-e/iro-15-e-book/iro-ospfv3-nssa-cfg.html
Q475. Which two statements about MAC Authentication Bypass are true? (Choose two.)
A. Traffic from an endpoint is authorized to pass after MAB authenticates the MAC address of the endpoint.
B. During the learning stage, the switch examines multiple packets from the endpoint to determine the MAC address of the endpoint.
C. After the switch learns the MAC address of the endpoint, it uses TACACS+ to authenticate it.
D. After learning a source MAC address, it sends the host a RADIUS Account-Request message to validate the address.
E. The MAC address of a device serves as its user name and password to authenticate with a RADIUS server.
Answer: A,E
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Q476. Now that we’ve generated the key, our next step would be to configure our vty lines for SSH access and specify which database we are going to use to provide authentication to the device. The local database on the router will do just fine for this example.
LabRouter(config)#line vty 0 4
LabRouter(config-line)#login local
LabRouter(config-line)#transport input ssh
5. You will need to create an account on the local router’s database to be used for authenticating to the device. This can be accomplished with these commands. LabRouter(config)#username XXXX privilege 15 secret XXXX
Reference: http://blog.pluralsight.com/configure-secure-shell-ssh-on-cisco-router
Q477. The OSPF database of a router shows LSA types 1, 2, 3 and 7 only. Which type of area is this router connected to?
A. backbone area
B. totally stubby area
C. stub area
D. not-so-stubby area
Answer: D
Q478. Refer to the exhibit.
What does the return code 3 represent in this output?
A. The mapping of the replying router for the FEC is different.
B. The packet is label-switched at stack depth.
C. The return code is reserved.
D. The upstream index is unknown.
E. The replying router was the proper egress for the FEC.
Answer: E
Explanation:
Return Codes The Return Code is set to zero by the sender. The receiver can set it to one of the values listed below. The notation <RSC> refers to the Return Subcode. This field is filled in with the stack-depth for those codes that specify that. For all other codes, the Return Subcode MUST be set to zero.
Value Meaning
0 No return code
1 Malformed echo request received
2 One or more of the TLVs was not understood
3 Replying router is an egress for the FEC at stack-depth <RSC>
4 Replying router has no mapping for the FEC at stack-depth <RSC>
Reference: https://www.ietf.org/rfc/rfc4379.txt
Q479. When you implement CoPP on your network, what is its default action?
A. permit all traffic
B. rate-limit bidirectional traffic to the control plane
C. drop management ingress traffic to the control plane
D. monitor ingress and egress traffic to the control plane by using access groups that are applied to the interface
E. block all traffic
Answer: A
Q480. Refer to the exhibit.
How many LSDBs will router A have?
A. 0
B. 1
C. 2
D. 3
Answer: D
