NEW QUESTION 1
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 2
The import-route limit" command is used to set a maximum number of imported routes that can be imported into an OSPF routing process.

• A. TRUE
• B. FALSE

Answer: A

NEW QUESTION 3
In OSPF protocol, Different types of networks cannot establish an adjacency with each other in the Full state.

• A. TRUE
• B. FALSE

Answer: B

NEW QUESTION 4
Which of the following route selection tools is used in multiple routing protocols, can be configured with match conditions, and consists of if-match and apply clauses?

• A. AS-path-filter
• B. IP-prefix
• C. Route-policy
• D. Community-filter

Answer: C

NEW QUESTION 5
ABR of a Stub area does not flood Type-5 and Type-4 LSAs into the area. Therefore, the Stub area does not have the external AS routing capability. ABRs of the Stub area generate a default route into the area which enables packet forwarding to external destinations.

• A. TRUE
• B. FALSE

Answer: A

NEW QUESTION 6
Which of the following statements are correct regarding BGP attributes? (Select 2 answers)

• A. Till now, there are 16 BGP attributes
• B. BGP attribute can be extended to 256 types
• C. Well known discretionary attribute may not be included in each BGP update message, such as origin attribute
• D. AS_PATH is an optional transitive attribute

Answer: AB

NEW QUESTION 7
The bandwidth-reference parameter is measured in Mbit/s.

• A. TRUE
• B. FALSE

Answer: A

NEW QUESTION 8
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 9
What are the functions of an IGMFV2 Query message? (Select 3 answers)

• A. A router sends IGMPv2 Query messages to collect group memberships of receiver hosts.
• B. A router sends IGMPv2 Query messages to elect a querier.
• C. A working router sends Query messages periodically.
• D. Based on IGMPv2 Query messages, receiver hosts can unicast Report messages to the querier by obtaining its address.

Answer: ABC

NEW QUESTION 10
Which statements regarding BGP well-known mandatory attributes are true? (Select 3 answers)

• A. Well-known mandatory attributes must be recognized by all BGP routers.
• B. Well-known mandatory attributes impacts the path decision process.
• C. Well-known mandatory attributes are optional in an Update packet, and can be included in an Update packet as needed.
• D. Well-known mandatory attributes must be included in all Update packets.

Answer: ABD

NEW QUESTION 11
Which of the following routing protocols support import-route? (Select 3 answers)

• A. OSPF
• B. RIP
• C. BGP
• D. Static

Answer: ABC

NEW QUESTION 12
Which parameters are carried in a BGPOpen message? (Select 3 answers)

• A. Local AS number
• B. BGPID
• C. Keepalive timer
• D. Holder timer
• E. Current peer status

Answer: ABD

NEW QUESTION 13
The most remarkable characteristic of OSPF is that it can support the link-state algorithm.

• A. TRUE
• B. FALSE

Answer: A

NEW QUESTION 14
Policy-based routing and routing policies implements the forwarding of data packets in different ways: A routing policy mainly controls packet forwarding. According to the routing policy,packets can be forwarded without a routing table; Policy-based routing mainly controls the importing, advertising, and receiving of routing information.

• A. TRUE
• B. FALSE

Answer: B

NEW QUESTION 15
By default, the cost of an OSPF interface is calculated based on the bandwidth. The formula to calculate the cost is reference bandwidth/interface bandwidth.

• A. TRUE
• B. FALSE

Answer: A

NEW QUESTION 16
The route selection tool route-policy" can set and filter BGP attributes based on pre-defined conditions. Therefore, this tool is often used to define policies towards a BGP peer or during route generation.

• A. TRUE
• B. FALSE

Answer: A

NEW QUESTION 17
One route-policy may have several nodes with each node containing a node ID. Each node may also have multiple "if-match" and "apply" clauses. Which of the following statements are true? (Select 2 answers)

• A. Different nodes are in an OR relationship.
• B. Different nodes are in an AND relationship.
• C. If-match clauses of a node are in an AND relationship,
• D. If-match clauses of a node are in an OR relationship.

Answer: AC

NEW QUESTION 18
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 19
A company has four departments. Department A has 80 PCs, Departments B and C both have 20 PCs, and Department D has 30 PCs. Assuming the IP address 192.168.1.0/x is used, which of the following statements are true if the VLSM technology is employed for subnetting? (Select 2 answers)

• A. Plan subnet 192.168.1.0/25 for Department
• B. The range of host addresses is 1 to 126.
• C. Plan subnet 192.168.1.128/27 for Department
• D. The range of host addresses is 129 to 159.
• E. Plan subnet 192.168.1.160/27 for Department
• F. The range of host addresses is 161 to 190.
• G. Plan subnet 192.168.1.192/27 for Department
• H. The range of host addresses is 192 to 222.

Answer: AC

NEW QUESTION 20
What is the default network mask length of 219.25.23.56?

• A. 8
• B. 16
• C. 24
• D. 32

Answer: C