
As shown in the figure, when the link between SWC and LAND is faulty, through which path are TCA BPDUs sent?
A. From SWA to SWB
B. From SWB to SWC
C. From SWB to SWA
D. From SWC to SWB
Which statements are true? (Choose three.)
A. The routing ARP proxy allows the hosts on different physical networks of the same network segment to communicate with each other.
B. The intra-VLAN ARP proxy allows isolated users on a VLAN to communicate with each other.
C. The inter-VLAN ARP proxy allows hosts on different VLANs to communicate with each other through Layer 3.
D. The inter-VLAN ARP proxy function can't be enabled on the VLANIF interface of the super VLAN to implement communication between sub-VLANs.
On an STP network, before the interface status transits from non-forwarding to forwarding, how many Forward Delay intervals does the interface wait for?
A. 2
B. 3
C. 4
D. 5
Which of the following statements about NAT are true? (Choose three.)
A. NAT is short for "network address translation".
B. NAT, also called address proxy, is used for translation between private and public network addresses.
C. Hosts within the intranet can access the extranet without using NAT.
D. NAT can effectively resolve the problem of IP address shortage.
The most remarkable characteristic of OSPF is that OSPF supports the link-state algorithm.
A. True
B. False
Which of the following statements about VLSM characteristics are true? (Choose two.)
A. VLSM supports both IPv4 and IPv6.
B. VLSM supports overlapped address ranges.
C. VLSM provides more proper route summarization information in the routing table.
D. VLSM allows a subnet to be divided into smaller subnets.
Assume that a TCP connection works properly, and the peer AS number configured for a BGP router is different from the AS number of its BGP peer. During the establishment of a BGP session, the BGP router exchanges routing information with its peer, and finds that its peer AS number is different from the AS number of the peer. Therefore, the BGP router sends a Notification message to the peer, indicating that the establishment of a BGP session fails. Which message can be identified by the Error Code field in the Notification message?
A. Route-refresh
B. Open
C. Keepalive
D. Update
Which switching technology reduces the size of broadcast domain?
A. VLAN
B. Trunk
C. RARP
D. STP
Which of the following statements regarding forwarding equivalence class (FEC) in MPLS are false? (Multiple Choice)
A. Packets with the same FEC are processed differently on a MPLS network.
B. FECs can be divided flexibly by source IP address, destination IP address, source port, destination port, protocol type, VPN, or any combinations of them.
C. MPLS classifies packets with the same forwarding processing mode into one FEC.
D. One FEC has only one unique label marker.
The device installation procedure is as follows: Prepare tools -> Install mounting ears -> Install floating nuts and guide rails based on site requirements -> Install the device in the cabinet.
A. TRUE
B. FALSE