Download New Updated (July) Cisco 400-101 Actual Test 231-240

Ensurepass

 

 

QUESTION 231

DRAG DROP

clip_image002

 

Correct Answer:

clip_image004

 

 

QUESTION 232

DRAG DROP

clip_image006

 

Correct Answer:

clip_image008

 

 

QUESTION 233

Refer to the exhibit. Which action must you take to enable full reachability from router C to router D?

 

clip_image010

 

A.

Build an OSPF virtual link.

B.

Build an OSPF sham link.

C.

Configure mutual redistribution between OSPF and EIGRP on routers A and B.

D.

Add a static route on router D.

 

Correct Answer: C

Explanation:

For full connectivity, we need to configure mutual redistribution to advertise the EIGRP routes into OSPF and to advertise the OSPF routes into the EIGRP network. This needs to be done at the two border routers that connect to both the EIGRP and OSPF domains.

 

 

 

 

 

 

 

 

QUESTION 234

Refer to the exhibit. Why is the router out of memory?

 

clip_image012

 

A.

The router is experiencing a BGP memory leak software defect.

B.

The BGP peers have been up for too long.

C.

The amount of BGP update traffic in the network is too high.

D.

The router has insufficient memory due to the size of the BGP database.

 

Correct Answer: D

Explanation:

Here we can see that this router is running out of memory due to the large size of the BGP routing database. In this case, this router is receiving over 200,000 routes from each of the 4 peers.

 

 

QUESTION 235

Refer to the exhibit. Why is the OSPF state in 2WAY/DROTHER?

 

clip_image013

 

A.

This is the expected output when the interface Ethernet0/0 of R1 is configured with OSPF Priority 0.

B.

There is a duplicate router ID.

C.

There is an MTU mismatch.

D.

There is an OSPF timer (hello/dead) mismatch.

E.

This is the expected output when R1 is the DR.

 

Correct Answer: A

Explanation:

Sometimes it is desirable for a router to be configured so that it is not eligible to become the DR or BDR. You can do this by setting the OSPF priority to zero with the ip ospf priority priority# interface subcommand. If two OSPF neighbors both have their OSPF interface priority set to zero, they establish two-way adjacency instead of full adjacency.

Reference: http://www.cisco.com/c/en/us/support/docs/ip/open-shortest-path-first-ospf/13683-11.html

 

 

QUESTION 236

In a nonbackbone OSPF area, all traffic that is destined to the Internet is routed by using a default route that is originated by the ABR. Which change in the configuration of the OSPF area type causes traffic from that area that is destined to the Internet to be dropped?

 

A.

The OSPF area changes from NSSA to totally stubby area.

B.

The OSPF area changes from NSSA to regular area.

C.

The OSPF area changes from stub area to totally stubby area.

D.

The OSPF area changes from stub area to NSSA.

 

Correct Answer: D

Explanation:

The ABR for the NSSA generates the default route, but not by default. To force the ABR to generate the default route, use the area <area id> nssa default-information originate command. The ABR generates a Type 7 LSA with the link-state ID 0.0.0.0 and is advertised inside the NSSA. This default route will be propagated inside the NSSA as Type 7 LSA.

Reference: http://www.cisco.com/c/en/us/support/docs/ip/open-shortest-path-first-ospf/13692-21.html#nssas

 

 

QUESTION 237

Which measure does ISIS use to avoid sending traffic with a wrong MTU configuration?

 

A.

ISIS does not protect from MTU mismatch.

B.

MTU value is communicated in ISIS Sequence Number PDUs (SNP), and ISIS adjacency is not established if an MTU mismatch is detected.

C.

ISIS uses path MTU discovery as specified in RFC 1063.

D.

ISIS uses padding of hello packets to full MTU.

 

Correct Answer: D

Explanation:

Intermediate System-to-Intermediate System (IS-IS) hellos are padded to the full maximum transmission unit (MTU) size. The benefit of padding IS-IS Hellos (IIHs) to the full MTU is that it allows for early detection of errors due to transmission problems with large frames or due to mismatched MTUs on adjacent interfaces.

Reference: http://www.cisco.com/c/en/us/support/docs/ip/integrated-intermediate-system-to-intermediate-system-is-is/47201-isis-mtu.html

 

 

 

 

QUESTION 238

Refer to the exhibit. When the link between RtrB and RtrC goes down, multicast receivers stop receiving traffic from the source for multicast group 229.1.1.1.Which solution will resolve this?

 

clip_image015

 

A.

adding a static mroute on RtrB and RtrF

B.

adding a static unicast route on RtrB and RtrF

C.

creating a GRE tunnel between RtrB and RtrD

D.

enabling PIM sparse mode on both ends of the link between RtrB and RtrF

 

Correct Answer: D

Explanation:

For multicast traffic to flow, PIM must be enabled on all routers in the path of the multicast stream.

 

 

QUESTION 239

Which regular expression will match prefixes from the AS 200 that is directly connected to our AS?

 

A.

^$

B.

^200)

C.

_200$

D.

_200_

E.

^200_

 

Correct Answer: E

Explanation:

Table 2 Commonly Used Regular Expressions

Expression

Meaning

*

Anything

^$

Locally originated routes

^100_

Learned from autonomous system 100

_100$

Originated in autonomous system 100

_100_

Any instance of autonomous system 100

^[0-9]+$

Directly connected autonomous system paths

Reference: http://www.cisco.com/c/en/us/td/docs/ios/termserv/configuration/guide/12_4t/tsv_12_4t_book/tsv_reg_express.html

 

 

QUESTION 240

Refer to the exhibit. Assuming that the peer is configured correctly and the interface is up, how many neighbors will be seen in the EIGRPv6 neighbor table on this IPv6-only router?

 

clip_image017

 

A.

one neighbor, which will use a local router-id of 6010. AB8. . /64

B.

one neighbor, which will use a local router-id of 6020. AB8. . /64

C.

none, because EIGRPv6 only supports authenticated peers

D.

none, because of the mismatch of timers

E.

none, because there is no EIGRP router ID configured

 

Correct Answer: E

Explanation:

Configuring EIGRP for IPv6 has some restrictions; they are listed below:

Reference: http://www.cisco.com/c/en/us/support/docs/ip/enhanced-interior-gateway-routing-protocol-eigrp/113267-eigrp-ipv6-00.html

 

 

Free VCE & PDF File for Cisco 400-101 Real Exam

Instant Access to Free VCE Files: CCNA | CCNP | CCIE …
Instant Access to Free PDF Files: CCNA | CCNP | CCIE …