Question 61
The value of ospfdr-priority ranges from 0 to 255 and the default value is 64.
A. True
B. False
Question 62
For a network like 175.25.128.0/19, the mask value is?
A. 255.255.0.0
B. 255.255.224.0
C. 255.255.24.0
D. Different based on the address type
Question 63
Which of the following statements about Stub areas is false?
A. An AS-external-LSA cannot be advertised to a Stub area.
B. The ABR in the Stub area generates a default route to guide forwarding of packets destined for other areas.
C. A Transit area cannot be configured as a Stub area.
D. Any area can be configured as a Stub area.
Question 64
If the network address 172.29.100.0/16 is subnetted, which of the following valid VLSM subnets can be obtained?
A. 172.29.100.8/28
B. 172.29.100.32/28
C. 172.29.100.60/28
D. 172.29.100.104/28
Question 65
Which of the followings are OSPF packet type? (Choose three.)
A. LSA
B. LS Request
C. LSP
D. LS Update
E. LS Ack
Question 66
The IP address 0.0.0.0 indicates ().
A. Network address
B. Broadcast address of specially designated network segment
C. All networks
D. Broadcast address of all nodes of local network segment
Question 67
What is the link ID of an ASBR-Summary-LSA?
A. OSPF Router ID of an LSA's originator
B. Port IP address of the DR on the described network segment
C. Address of the destination network segment
D. Router ID of the destination ASBR
Question 68
When the GR Restarter performs the active/standby switchover, the neighbor performs which of the following operations when detecting that a TCP disconnection? (Choose three.)
A. Keeping the routing tables of various address families advertised by the GR Restarter during negotiation, marking entries in these tables with stale tags, and starting a stale timer
B. Starting a restart timer.
C. Clearing all routing entries and forwarding entries related to the GR restarter if the GR restarter fails to re-establish the BGP connection with the neighbor after the restart timer expires.
D. Remaining the neighbor relationship unchanged.
Question 69
On a broadcast network or an NBMA network, not all neighbors need to set up adjacencies. Therefore, the concept about the adjacency is applicable to only the broadcast network or the NBMA network.
A. True
B. False
Question 70
Which is the default network mask length of 219.25.23.56?
A. 8
B. 16
C. 24
D. 32
