[Free] Download New Latest (November) Cisco 400-201 Actual Tests 101-110

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QUESTION 101

Which information is carried in the OSPFv3 intra-area Prefix LSA?

 

A.

All link-local addresses

B.

All IPv6 prefix and topology information that OSPFv2 included in Router LSA and Network LSA

C.

List of options associated with the link to all other routers attached to the link

D.

All prefix-specific information that OSPFv2 included in Router LSA and Network LSA

 

Correct Answer: D

Explanation:

OSPFv3’s new LSA, the Intra-area Prefix LSA (type 9), handles intra-area network information that was previously included in OSPFv2 type 2 LSAs. It is used in order to advertise one or more IPv6 prefixes. The prefixes are associated with router segment, stub network segment or transit network segment. Intra-area prefix LSAs (type 9) & Inter-Area- Prefix-LSA (type 3) carry all IPv6 prefix information, which, in IPv4, is included in router LSAs and network LSAs.

 

 

QUESTION 102

Which of these is not a component of MPLS traffic engineering?

 

A.

trunk admission control

B.

forwarding traffic to tunnel

C.

information distribution

D.

path selection, calculation, and setup

E.

traffic patterns prediction

 

Correct Answer: E

 

 

QUESTION 103

What is the action of “pop” in the context of MPLS switching?

 

A.

It replaces the top label in the MPLS label stack with a set of labels.

B.

It replaces the top label in the MPLS label stack with another value.

C.

It adds a top label in MPLS label stack.

D.

It removes the top label in the MPLS label stack.

 

Correct Answer: D

 

 

QUESTION 104

What statement about Transit AS is true?

 

A.

Traffic and prefixes originating from Transit AS are carried across a Stub AS to their Source AS.

B.

None of the above.

C.

Traffic and prefixes originating from Source AS are carried across a Transit AS to reach their destination AS.

D.

Traffic and prefixes originating from Transit AS are carried across a Stub AS to their destination AS.

 

Correct Answer: C

 

 

QUESTION 105

Which statement about OSPF ASBR summary LSA is true?

 

A.

It is generated by an ASBR and indicates the reachability to an ABR located in another area.

B.

It is generated by ABR and indicates the reachability to an ASBR located in another AS.

C.

It is generated by ABR and indicates reachability to itself.

D.

It is generated by ABR and indicates the reachability to an ASBR located in another area.

E.

It is generated by an ASBR and indicates the reachability to an ABR.

 

Correct Answer: D

 

 

 

QUESTION 106

Which of the following processes in IOS XR run exclusively on the Route Processor? (Choose two.)

 

A.

wdsysmon

B.

mpls_idp

C.

sysmgr

D.

gsp

E.

bgp

 

Correct Answer: BE

 

 

QUESTION 107

Which two are characteristics of an IPv6 multicast address? (Choose two)

 

A.

Is allocated from the unicast address space

B.

Second octet contains a 4-bit multicast scope field

C.

Starts with a prefix of FE80 to FEBF in hex

D.

Last 64 bit contains the modified MAC address of the Ethernet interface

E.

First (most significant)
octet is FF in hex

F.

Starts with a prefix of FECO to FEFF in hex

 

Correct Answer: BE

Explanation:

The 12000 uses virtual output queues to eliminate the Head of Line Blocking within the switch fabric.

 

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QUESTION 108

All secure domain routers (SDRs) have shared attribute and resources. Which three resources are shared all SDRs? (Choose three.)

 

A.

privilege-level configuration

B.

fabric cards

C.

SNMP traps

D.

admin-level configuration

E.

exec-level configuration

 

Correct Answer: BCD

Explanation:

1.4. SP high end product

There are shared attributes and resources common to all SDRs. It is important to note that the shared resources are critical to the system’s overall operation. Some examples of shared resources that are common to SDR are:

Environmental resources.

Power supplies.

Fan trays.

Fan controllers.

Fabric cards.

 

Software related:

* Exec-level configuration. Configuration in admin mode can affect all SDRs.

* Admin-level configuration. Admin-level command can impact owner SDR and non-owner SDRs.

* Process instances. A few processes are shared, systemwide processes such as LRd (SDR Deamon).

Management:

* SNMP traps. For example, shared power, fans, and fabric-related traps.

* SNMP polling. Shared for power, fans, and fabric-related MIBS.

* Syslogs. Some non-owner SDRs are logged to the owner SDR.

* Shared environment variables.

 

 

QUESTION 109

Which two statements regarding the IS-IS DIS election process are true? (Choose two.)

 

A.

L1 routers on a broadcast network only establish adjacencies with the DIS.

B.

If the DIS becomes unavailable the backup DIS is promoted to DIS.

C.

Adding a router with a higher priority than the current DIS will result in
the new router becoming DIS.

D.

Separate L1 and L2 election processes are held on a brodcast network.

E.

A priority of 0 will prevent a router from becoming a DIS.

F.

If there is a tie based on priority, the router whose attached interface has the lowest MAC address becomes the DIS.

 

Correct Answer: CD

Explanation:

Election of the DIS

On a LAN, one of the routers elects itself the DIS, based on interface priority (the default is 64). If all interface priorities are the same, the router with the highest subnetwork point of attachment (SNPA) is selected. The SNPA is the MAC address on a LAN, and the local data link connection identifier (DLCI) on a Frame Relay network. If the SNPA is a DLCI and is the same at both sides of a link, the router with the higher system ID becomes the DIS. Every IS-IS router interface is assigned both a L1 priority and a L2 priority in the range from 0 to 127.

The DIS election is preemptive (unlike OSPF). If a new router boots on the LAN with a higher interface priority, the new router becomes the DIS. It purges the old pseudonode LSP and floods a new set of LSPs.

 

 

 

 

QUESTION 110

Which option is not a valid method to assign the lowest-order 64-bit field of an IPv6 unicast address?

 

A.

ARP

B.

manual assignment

C.

DHCPv6

D.

auto-configured based on the 48-bit MAC address

E.

auto-generated pseudo-random number

 

Correct Answer: A

Explanation:

I concluded, and quickly confirmed that there’s no such thing as ARP in IPv6 – so how do hosts find each other on a network? During the course of my studies, I learned that many functions like this were wrapped under the umbrella of IPv6 Neighbor Discovery, which runs on ICMPv6. The function of ARP is replaced in IPv6 by Neighbor Solicitation messages. I’d like to deep dive for a minute or two and explain exactly how this works.

 

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