Breathing H12-221 Exam Dumps 2019

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NEW QUESTION 1
Which of the following network link type is not the basic network link type defined in OSPF?

  • A. P2P
  • B. P2MP
  • C. Broadcast
  • D. Virtual link

Answer: D

NEW QUESTION 2
Which BGP attribute is usually used to determine the path along which data flows to an AS?

  • A. Router ID
  • B. Nexthop
  • C. Local-Preference
  • D. MED

Answer: D

NEW QUESTION 3
Which port number is used by BGP to establish a TCP connection?

  • A. 520
  • B. 89
  • C. 179
  • D. I80

Answer: C

NEW QUESTION 4
Over a working TCP connection, what is the state of the BGP peer relationship if the peer AS number configured for a BGP router is inconsistent with the AS number of its BGP peer?

  • A. Idle
  • B. Active
  • C. OpenSent
  • D. Established

Answer: B

NEW QUESTION 5
What are the advantages of subnetting? (Select 2 answers)

  • A. Isolating broadcast traffic
  • B. Improving network QoS
  • C. Increasing the IP address usage
  • D. Improving network reliability

Answer: AC

NEW QUESTION 6
Which of the following statements regarding multicast MAC addresses are true (Select 3answers)

  • A. The high-order 24 bits of a multicast MAC address are 0x01005e while the low-order 23 bits of a multicast MAC address are the low-order 23 bits of a multicast IP address.
  • B. One multicast MAC address can map 32 different IP multicast addresses.
  • C. Multicast MAC addresses are used in the link layer to identify receivers that are in the same multicast group.
  • D. One multicast MAC address can map only one IP multicast address.

Answer: ABC

NEW QUESTION 7
An IP-prefix-filter is used for filtering IP prefixes and data packets.

  • A. TRUE
  • B. FALSE

Answer: B

NEW QUESTION 8
If the default-route-advertise command is used to advertise a default BGP route to peers, how will this operation affect the local BGP routing table?

  • A. An inactive default route will be generated in the local BGP routing table which will not be delivered to the IP routing table.
  • B. An active default route will be generated in the local BGP routing table which will be delivered to the IP routing table.
  • C. The local BGP routing table will not be affected and no default route will be generated.
  • D. A default route will be generated in the local BGP routing tabl
  • E. Whether this route is delivered to the IP routing table depends on route selection results.

Answer: C

NEW QUESTION 9
Which statement about OSPF is false?

  • A. Hello messages are used as a form of greeting to discover other routers on its networks and establish relationships between neighboring device
  • B. On broadcast or NBMA networks, Hello messages can also be used to elect a DR or a BDR.
  • C. DD packets describe the summary LSDB information by carrying LSA headers.
  • D. The intervals at which two routers send Hello messages must be consistent; otherwise, cannot be established relationships between neighboring devices.
  • E. DD packets contain headers of all LSAs for periodic LSDB synchronization between OSPF neighbors.

Answer: D

NEW QUESTION 10
A company reserves the network segment 172.29.100.0/26 for some remote small-scale sites. Each site has 5 IP devices to connect to this network segment. Which of these Variable Length Subnet Masks (VLSMs) can be used to accommodate the need for minimum number of hosts?

  • A. /27
  • B. /28
  • C. /29
  • D. /30

Answer: C

NEW QUESTION 11
The ABR of an NSSA does not advertise Type-4 and Type-5 LSAs to an NSSA instead it imports external routes into the NSSA,

  • A. TRUE
  • B. FALSE

Answer: A

NEW QUESTION 12
When a routing protocol import routes discovered by other routing protocols, it must import only the routes that meet the conditions and set attributes for the imported routes. In such a case, a route-policy can be created.

  • A. TRUE
  • B. FALSE

Answer: A

NEW QUESTION 13
Which of the following statements regarding NSSA commands is false?

  • A. The default-route-advertise command is used to generate a type-7 default route.
  • B. The no-import-route parameter prevents the import of AS external routes in the form of Type-7 LSAs into an NSSA.
  • C. The no-summary parameter prevents the advertisement of Type-3 and Type-4 LSAs in an area.
  • D. The set-n-bit parameter indicates that an N-bit will be set in a DD packet.

Answer: A

NEW QUESTION 14
Which of the following statements regarding BGP route selection rules are true? (Select 3 answers)

  • A. BGP initially ignores routes with unreachable next hops,
  • B. A summarized route takes precedence over a non-summarized route.
  • C. IBGP routes take precedence over EBGP routes.
  • D. If all other factors are the same, the route with the shortest length cluster list is preferred.

Answer: ABD

NEW QUESTION 15
Which statements regarding the range of AS number are true? (Select 3 answers)

  • A. If 2-byte AS values are supported, the private AS number ranges from 32768 to 65535.
  • B. If 2-byte AS values are supported, the private AS number ranges from 64512 to 65535.
  • C. If 2-byte AS values are supported, the AS number ranges from 1 to 65535.
  • D. If 4-byte AS values are supported, then the 4-byte AS number is in the x.y forma
  • E. Here, "x" and "y" are integers ranging from 1 to 65535 and 0 to 65535 respectively.

Answer: BCD

NEW QUESTION 16
In VRP, by default, a BGP router does not automatically send a refresh packet to its BGP peers for retransmitting an Update packet after the inbound routing policy of the BGP peers changes.

  • A. TRUE
  • B. FALSE

Answer: B

NEW QUESTION 17
The ABR in a Totally Stubby area will not advertise Type-3, Type-4, and Type-5 LSAs into the Totally Stubby area. Instead, the ABR will advertise a default route to the Totally Stubby area enabling packet forwarding to other destinations.

  • A. TRUE
  • B. FALSE

Answer: A

NEW QUESTION 18
BGP speakers sends which type of message to identify its peer's AS number information?

  • A. Route-refresh
  • B. Open
  • C. Keepalive
  • D. Update

Answer: B

NEW QUESTION 19
What is the maximum number of hosts that a network segment 192.168.2.16/28 can support?

  • A. 16
  • B. 8
  • C. 15
  • D. 14
  • E. 7

Answer: D

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