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Enabling MD5 authentication between BGP peers can prevent DoS attacks that target BGP peers.
Correct Answer: A QUESTION 2
Which of the following statements are correct regarding OSPF intra-area route calculation? (Select 2 answers)
A. Each OSPF router uses only one Router LSA to describe the local active link state for an area.
B. Each OSPF router uses more than one Router LSA to describe local active link state for an area.
C. One Router LSA describes only one link,
D. One Router LSA describes more than one link.
Correct Answer: AD QUESTION 3
Which of the following is the address range assigned by IANA for SSM service in IPv4?
Correct Answer: D QUESTION 4
Which of the following are multicast routing protocols? (Select 3 answers)
Correct Answer: ABD QUESTION 5
Which of the following route entries match the IP-Prefix defined below? ip ip-prefix test index 10 permit 192.168.0.0 16 greater-equal 24 less-equal 28 (Select 2 answers)
Correct Answer: AC QUESTION 6
Which of the following is the multicast distribution tree maintained by PIM-DM?
Correct Answer: A QUESTION 7
Which of the following attributes must exist in the BGP update messages? (Select 3 answers)
Correct Answer: BCD QUESTION 8
In OSPF protocol, Different types of networks cannot establish an adjacency with each other in the Full state.
Correct Answer: B QUESTION 9
What does an IP address of 0.0.0.0 indicate?
A. Network address
B. Broadcast address of specially designated network segment
C. All networks
D. Broadcast address of all nodes of local network segment
Correct Answer: C QUESTION 10
The unicast and multicast technologies are both outstanding in solving the problem of “single source, multiple destinations” in order to allow efficient P2MP data transmission.
Correct Answer: B QUESTION 11
Which of the following connection types can a Router LSA describe? (Select 3 answers)
D. Virtual link
Correct Answer: ACD QUESTION 12
BGP peers are automatically discovered by exchanging multicast packets.
Correct Answer: B QUESTION 13
Which of the following describes the relationship between BGP and AS?
A. BGP only runs between ASs, and cannot run within an AS.
B. BGP is an EGP used by ASs to exchange routing information with other ASs.
C. BGP builds network topologies by exchanging link-state information between ASs.
D. BGP cannot run between ASs.
Correct Answer: B QUESTION 14
If the subnet mask for Class A address is 255.255.240.0, how many bits are used for subnetting?
Correct Answer: D QUESTION 15
When running in non-broadcast networks, OSPF uses one of the two modes: NBMA or P2MP.
Correct Answer: A QUESTION 16
Which of the following is a private AS number?
Correct Answer: C QUESTION 17
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.
Correct Answer: ABD QUESTION 18
The router ID which is configured in the system view takes precedence over the router ID configured in the BGP view.
Correct Answer: B QUESTION 19
Which of the following IP addresses are network addresses? (Select 2 answers)
Correct Answer: BD QUESTION 20
OSPF uses SPF algorithm to compute the SPF tree based on the topology. What is the node of the 5PF tree?
B. Router and network segment
C. Port and network segment
D. Router and port
Correct Answer: B QUESTION 21
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.
Correct Answer: A QUESTION 22
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.
Correct Answer: A QUESTION 23
Which of the following route entries matches ACL 2001 that is defined below? 188.8.131.52/8 ,184.108.40.206/16,220.127.116.11/24,18.104.22.168/24,22.214.171.124/24, 126.96.36.199/24,188.8.131.52/24,184.108.40.206/24 ACL 2001: Basic ACL 2001, 1 rule Ad’s step is 5 rule 0 permit source 220.127.116.11 0.0.254.255
A. 18.104.22.168/24,22.214.171.124/24, 126.96.36.199/24, 188.8.131.52/24,184.108.40.206/24,220.127.116.11/24
B. 18.104.22.168/8,22.214.171.124/16,126.96.36.199/24,188.8.131.52/24,184.108.40.206/24, 220.127.116.11/24,18.104.22.168/24,22.214.171.124/24
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