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CCIE Routing and Switching (v5.1)

Question No: 271 – (Topic 2)

Which three pieces of information are carried on OSPF type-3 LSAs? (Choose three)

1. metric

2. authentication type

3. link state

4. IP subnet

5. externaI route tag

6. subnet mask

Answer: A,D,F

Question No: 272 – (Topic 2)

Which two statements about PPP PAP are true?(Choose two)

1. It requires two-way authentication

2. It can protect against playback attacks

3. It is supported only on synchronous interfaces

4. It is vulnerable to trial-and-error attacks

5. Login attempts are controlled by the remote node

Answer: A,E

Question No: 273 – (Topic 2)

Which two statements about the BGP community attribute are true?(Choose two.)

1. Routers send the community attribute to all BGP neighbors automatically.

2. A router can change a received community attribute before advertising it to peers.

3. It is a well-known, discretionary BGP attribute.

4. It is an optional transitive BGP attribute.

5. A prefix can support only one community attribute.

Answer: B,D

Question No: 274 – (Topic 2)

How does MSTP maintain compatibility with RSTP?

1. The system ID of an RSTP BPDU is padded with extra bytes to match the format of an MSTP BPDU.

2. MSTP sends all spanning-tree information in one BPDU

3. RSTP encodes region information from an MSTP BPDU into a single instance.

4. MSTP supports five port states in the same way as RSTP.

5. RSTP implements a TTL that is compatible with the MSTP max age timer.

Answer: A

Question No: 275 – (Topic 2)

Which IPv6 tunneling type establishes a permanent link between IPv6 domains over IPv4?

1. 6to4 tunneling

2. ISATAP tunneling

3. IPv4-compatible tunneling

4. manual tunneling

Answer: D

Question No: 276 – (Topic 2)

Your NetFlow collector is not working due to a large amount of traffic entering your network which is destined to a single IP address. Which NetFlow feature allows you to collect the top source hosts for this traffic on the local router?

1. NetFlow can export flows only to.a external flow collector

2. ip flow-top-talkers

3. ip accounting

4. show ip cache flow

Answer: B

Question No: 277 – (Topic 2)

Refer to the exhibit. Which network script automation option or tool is used in the exhibit?

1. EEP

2. Python

3. Bash script

4. NETCONF

5. RESET

Answer: B

Question No: 278 – (Topic 2)

Refer to the exhibit .Which two statements about the output are true?(Choose two)

1. BFD on RT1 has negotiated the BFD capability with its pe r

2. BFD is active on interface GigabitEthernet0/3 and is using ICMP

3. BFD is active on interface GigabitEthernet0/3 and is using UDP

4. BFD last failed 476 ms ago on interface GigabitEthernet0/3 /

5. BFD is active for BGP on RT1

Answer: D,E

Question No: 279 DRAG DROP – (Topic 2)

Drag and drop each STP po role on the le to the matching statement on the right.

Select and Place:

Answer:

Question No: 280 – (Topic 2)

Which two statements about IPv4 and IPv6 networks are true? ( Choose two)

1. IPv6 uses a required checksum at the network layer

2. In IPv4 fragmentation is permed by the source of the packet

3. IPv4 uses an optional checksum at the transport layer

4. IPv6 uses a UDP checksum to verify packet integrity

5. In IPv6routers perform fragmentation

6. In IPv6hosts perform fragmentation

Answer: D,F

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