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Question 131/142
A Layer 2 switch works at the data link layer. As such, it can identify MAC addresses in data frames, forward data based on MAC addresses, and record mappings between MAC addresses and interface numbers in its MAC address table.
Correct Answer: A
Detailed Explanation:Layer 2 switches operate at the data link layer, handling frames based on MAC addresses. They maintain a MAC address table to record mappings between MAC addresses and interfaces, allowing efficient frame forwarding within the local network. (Reference: HCIA-Datacom Training Material, Layer 2 Switching and MAC Address Learning)
- Question List (142q)
- Question 1: The country code configuration affects the actual transmissi...
- Question 2: (The IPv6 address architecture does not include which of the...
- Question 3: After the administrator performs the configuration shown in ...
- Question 4: When the host accesses the web service of the server, the va...
- Question 5: Which of the following statements is true?...
- Question 6: Which of the following mask lengths is recommended for devic...
- Question 7: Which of the following BIDs cannot be contained in a configu...
- Question 8: (An administrator cannot log in to a Huawei router through T...
- Question 9: (Which of the following OSPF packets can be used to confirm ...
- Question 10: Which of the following port numbers is used by the FTP contr...
- Question 11: On the Huawei VRP, what is the default preference of differe...
- Question 12: (Which of the following are not main functions of routers?)...
- Question 13: According to the VTY user interface configuration shown in t...
- Question 14: The users who log on the router through Telnet are not permi...
- Question 15: Which of the following statements regarding static routing a...
- Question 16: The following figure shows the display stp command output on...
- Question 17: An ACL is essentially a packet filter. An ACL takes effect o...
- Question 18: When a switch port receives a frame that does not carry a VL...
- Question 19: Which of the following statements is true about link aggrega...
- Question 20: VLAN 4095 is reserved for system use and VLAN 1 cannot be de...
- Question 21: An authenticator router has been configured with two domains...
- Question 22: < Huawei > system-view [Huawei]command-privilege level...
- Question 23: (Which of the following methods can be used to assign servic...
- Question 24: A Layer 2 ACL can match information such as the source MAC a...
- Question 25: SNMP packets are transmitted by UDP....
- Question 26: If the transport-layer protocol is UDP, the value of the "Pr...
- Question 27: Which of the following statements regarding Designated Route...
- Question 28: Which of the following OSPF versions is specific to IPv6?...
- Question 29: If the broadcast address of a network is 172.16.1.255, which...
- Question 30: What is used as the data link-layer MAC address that identif...
- Question 31: In the following figure, all links are Ethernet links, and a...
- Question 32: Which of the following packets are exchanged between STAs an...
- Question 33: Which of the following IEEE 802.11 standards supports the 2....
- Question 34: Refer to the following commands run on GigabitEthernet0/0/1 ...
- Question 35: The network administrator performs the configuration shown i...
- Question 36: What is the total length of the port ID in STP?...
- Question 37: A switch receives a unicast data frame with a VLAN tag but c...
- Question 38: Which of the following networks are LANs?...
- Question 39: Fit APs can work independently of an AC....
- Question 40: As shown in the figure, RTA uses NAT and has an address pool...
- Question 41: Which of the following ACLs can match the transport layer po...
- Question 42: The router that runs OSPF first enters the Full state and th...
- Question 43: A router that runs OSPF can enter the Full state only after ...
- Question 44: On the network shown in the figure, host A logs in to router...
- Question 45: Which of the following is not a common network layer in a mi...
- Question 46: (The administrator performs the configuration shown in the f...
- Question 47: (Each network device running SNMP runs an agent process loca...
- Question 48: Which of the following elements are included in a routing ta...
- Question 49: On the command line interface of Huawei AR routers, the role...
- Question 50: If Spanning Tree Protocol (STP) is disabled on the network c...
- Question 51: As specified by the RSTP protocol, when a root port fails, w...
- Question 52: After an Eth-Trunk in LACP mode is created, devices on both ...
- Question 53: What function does Ctrl+Z have in the VRP system?...
- Question 54: Refer to the captured three packets shown in the figure. Whi...
- Question 55: On the network shown in the figure, Host A and Host B cannot...
- Question 56: In a broadcast address, all host bits are set to 1, and a br...
- Question 57: The IP address 192.168.1.127/25 represents a ( ) address....
- Question 58: Which of the following statements about the network shown in...
- Question 59: Network devices running SNMP can proactively report traps to...
- Question 60: Assuming that OSPF has been enabled on all routers in the fo...
- Question 61: Which of the following parameters is used to elect the root ...
- Question 62: How many port states are involved in RSTP?...
- Question 63: Which of the following WLAN security policies support open l...
- Question 64: When an Ethernet frame is received by an interface on a Laye...
- Question 65: After a switch restarts, static MAC address entries saved on...
- Question 66: If the packet matches the deny rule in an ACL, the packet is...
- Question 67: (Which of the following statements is true about active inte...
- Question 68: A company applies for a class C IP address for subnetting. I...
- Question 69: UDP does not guarantee data transmission reliability and doe...
- Question 70: To provide the information about the IP addresses that a use...
- Question 71: What is used as the data link-layer MAC address that identif...
- Question 72: For STP, the Message Age in the configuration BPDUs sent by ...
- Question 73: What are the advantages of using DHCP to allocate IP address...
- Question 74: (You can run the "pwd" and "dir" commands on the Versatile R...
- Question 75: Assume that an OSPF-enabled router has no loopback interface...
- Question 76: Which of the following commands can switch a view from the s...
- Question 77: By default, all SNMP versions (SNMPv1, SNMPv2c, and SNMPv3) ...
- Question 78: (Loops may cause broadcast storms on a Layer 2 network.)...
- Question 79: On the VRP platform, which of the following parameters can b...
- Question 80: Which of the following VRP commands can be used to enter are...
- Question 81: The router ID of the OSPF-enabled router must be the same as...
- Question 82: telnetlib is a module provided by Python to implement the Te...
- Question 83: Which of the following fields are included in an MPLS header...
- Question 84: The following figure shows the display interface Eth-Trunk 1...
- Question 85: Dynamic routing protocols can automatically adapt to network...
- Question 86: In RSTP, an edge port becomes a common STP port after receiv...
- Question 87: The Network Management Station uses SNMP to manage devices. ...
- Question 88: Which of the following information is displayed when an ente...
- Question 89: Which of the following statements is true about the Forward ...
- Question 90: When forwarding a data packet, a router needs to change the ...
- Question 91: Which of the following statements about hybrid interfaces is...
- Question 92: (An Eth-Trunk interface can be used only as a Layer 2 interf...
- Question 93: Following a failure of services in the network, an administr...
- Question 94: (Refer to the display startup command output shown in the fi...
- Question 95: Which of the following operations are mandatory to restore t...
- Question 96: When a router is powered on, the router reads the configurat...
- Question 97: A routing entry contains multiple fields. Which of the follo...
- Question 98: If the MAC address of an interface is 00E0-FCEF-0FEC, the co...
- Question 99: Which of the following planes does a network device have?...
- Question 100: Which of the following statements about static routes on Hua...
- Question 101: An ACL rule is as follows. Which of the following IP address...
- Question 102: It is advised to assign static IP addresses to servers durin...
- Question 103: Static NAT can only implement one-to-one mapping between pri...
- Question 104: Which of the following statements is true about root bridge ...
- Question 105: In the case of Huawei routers, what is the "-i" parameter in...
- Question 106: Refer to the following display vlan command output on SWA. W...
- Question 107: In STP, the bridge ID on the switching network is as follows...
- Question 108: When an AP and an AC are located on different Layer 3 networ...
- Question 109: What is the protocol number of OSPF at the network layer?...
- Question 110: In STP, which of the following items may affect the selectio...
- Question 111: Which of the following states indicates that the OSPF neighb...
- Question 112: Which of the following is not included in the routing table?...
- Question 113: When two switches are connected through link aggregation, wh...
- Question 114: (Which of the following routing protocols are dynamic routin...
- Question 115: If a device running STP receives an RSTP configuration BPDU,...
- Question 116: What is the protocol of the Router Advertisement (RA) packet...
- Question 117: Which of the following parts compose SNMP?...
- Question 118: Which of the following port statuses may exist on an STP-ena...
- Question 119: When the ACL in the following figure is configured on a Teln...
- Question 120: By referring to the network structure and OSPF areas shown i...
- Question 121: Which of the following commands is used to display the CPU u...
- Question 122: Which of the following is the default port number of the Tel...
- Question 123: What is the TPID value defined by IEEE 802.1Q?...
- Question 124: In the following figure, all links are Ethernet links, and a...
- Question 125: The following figure shows the display interface Eth-Trunk 1...
- Question 126: A company applies for a class C IP address for subnetting. I...
- Question 127: The priority of static routes cannot be manually specified....
- Question 128: Which of the following IEEE 802.11 standards supports a theo...
- Question 129: What is the length range of an Ethernet_II frame that contai...
- Question 130: RSTP uses the proposal/agreement mechanism to shorten the ti...
- Question 131: A Layer 2 switch works at the data link layer. As such, it c...
- Question 132: If AAA authentication is used on Huawei devices and the remo...
- Question 133: Which of the following network types are supported by OSPF?...
- Question 134: During STP calculation, the port cost is associated with the...
- Question 135: For STP, the default root path cost of the root bridge is 0....
- Question 136: telnetlib is a module provided by Python to implement the Te...
- Question 137: In RSTP, an edge port becomes a common STP port after receiv...
- Question 138: (When a network engineer enters a command, the following inf...
- Question 139: As shown in the figure, all switches run STP. Assume that th...
- Question 140: More than two switches can be stacked into one logical devic...
- Question 141: Refer to the following display vlan command output. Which of...
- Question 142: On Huawei routers, which of the following is the default pre...
