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NEW QUESTION 242
Which of the following messages are used in IPv6 address resolution? (multiple choice)
- A. Neighbor announcement message
- B. Neighbor solicitation message
- C. Router solicitation message
- D. router advertisement message
Answer: A,B
NEW QUESTION 243
I saw the following debugging information on an MSR router:
*Jan 23 09:17:36:720 2009 H3C RM/6/RMDEBUG:Source Address: 192.168.1.1
*Jan 23 09:17:36:770 2009 H3C RM/6/RMDEBUG:Destination Address: 224.0.0.5
*Jan 23 09:17:36:871 2009 H3C RM/6/RMDEBUG:Ver# 2, Type: 1, Length: 48.
*Jan 23 09:17:36:972 2009 H3C RM/6/RMDEBUG:Router: 192.168.1.1, Area: 0.0.0.0, Checksum: 62961.
*Jan 23 09:17:37:72 2009 H3C RM/6/RMDEBUG:AuType: 00, Key(ascii): 0 0 0 0 0 0 0 0.
*Jan 23 09:17:37:173 2009 H3C RM/6/RMDEBUG:Net Mask: 255.255.255.0, Hello Int: 10, Option: _E_.
Then according to the above information, you can know ______.
- A. The routing protocol that the router runs supports VLSM
- B. The router may be running RIPv2
- C. The router is not running RIPv1
- D. OSPF may be running on this router
Answer: D
NEW QUESTION 244
The 802.11b protocol defines 14 channels in the 2.4GHz frequency band, and there is overlap in the frequency spectrum between adjacent channels. In order to maximize the use of frequency band resources, which set of channels can be used for wireless coverage?
- A. 2, 7, 12
- B. 1, 6, 10
- C. 1, 5, 9
- D. 3, 6, 9
Answer: A
NEW QUESTION 245
Which of the following options are the features of 802.1x authentication based on MAC address? (multiple choice)
- A. When a user goes offline, only that user cannot use the network
- B. All access users under the port need to be independently verified
- C. As long as the first user under the port is successfully authenticated, other access users can use network resources without authentication
- D. When the first user under the port goes offline, other users will also be denied access to the network
Answer: A,B
NEW QUESTION 246
The correct statement below is ______. (Multiple choice)
- A. CSU (Channel Service Unit): A digital interface device that connects end users with the local digital telephone loop. Usually it and DSU are collectively referred to as CSU/DSU. CSU equipment includes computers, protocol translators, and demultiplexers. DTE equipment includes these
- B. DCE (Data Circuit Terminating Equipment, data communication equipment or data circuit terminal equipment) equipment and its connection with the communication network constitute the user network interface of the network terminal. It provides a physical connection to the network for forwarding traffic, and provides a clock signal for synchronizing data transmission between DCE equipment and DTE equipment.
- C. DTE (Data Terminal Equipment, data terminal equipment) equipment refers to the equipment located at the user end of the user network interface, it can be used as a source, a sink, or both at the same time. Data terminal equipment is connected to a data network through a data communication device (for example, a modem), and usually uses a clock signal generated by the data communication device. Modems and interface cards are examples of DTE devices. Is an example of a DCE device
- D. DSU (Data Service Unit): refers to a device used in digital transmission, which can adapt the physical layer interface on the DTE device to communication facilities such as T1 or E1. The data service unit is also responsible for signal timing and other functions. It is usually mentioned together with CSU and is called CSU/DSU.
Answer: B,D
NEW QUESTION 247
The two empty-configured MSR routers MSR-1 and MSR-2 are directly connected through their respective GE0/0 interfaces, and the IP addresses on GE0/0 of MSR-1 and MSR-2 are 10.1.1.1/24 and 10.1.1.2. /24, there is IP reachability between two GE0/0 interfaces.
Then added the following OSPF configurations on the two routers:
MSR-1:
[MSR-1-ospf-1] area 0.0.0.255
[MSR-1-ospf-1-area-0.0.0.255] network 10.1.1.0 0.0.0.255
MSR-2:
[MSR-2-ospf-1] area 255
[MSR-2-ospf-1-area-0.0.0.255] network 10.1.1.0 0.255.255.255
Then the correct description of the above configuration is _____. (Multiple choice)
- A. The OSPF interfaces of the two routers belong to the OSPF area 255
- B. The command network 10.1.1.0 0.0.0.255 on MSR-1 means to start OSPF on the GE0/0 interface of the router and join the corresponding area
- C. The OSPF interfaces of the two routers do not belong to the same OSPF area, and the OSPF Area of one of the routers is incorrectly configured
- D. The command network 10.1.1.0 0.255.255.255 on MSR-2 cannot start OSPF on the GE0/0 interface of the router
Answer: A,B
NEW QUESTION 248
Compared with traditional LAN, which of the following advantages does VLAN have? (multiple choice)
- A. Users are not restricted by physical devices, VLAN users can be anywhere in the network
- B. Enhance the robustness of the network
- C. Limit broadcast packets and improve bandwidth utilization
- D. Enhance the security of communication
- E. Create a virtual working group
- F. Reduce the cost of movement and change
Answer:
Explanation:
ABCDEF
NEW QUESTION 249
A company purchased switches from two manufacturers, A and B, for network engineering implementation. Need to use link aggregation technology between the switches of the two vendors. After consulting the relevant documents, it is found that the switch of manufacturer A does not support the LACP protocol.
In this case, which of the following configuration methods are reasonable? (multiple choice)
- A. Both parties configure dynamic aggregation
- B. Both parties configure static aggregation
- C. Unable to use link aggregation
- D. One party configures static aggregation, and one party configures dynamic aggregation
- E. One party configures static aggregation, and one party configures dynamic aggregation
Answer: B
NEW QUESTION 250
The two routers RTA and RTB are interconnected back-to-back using serial ports. The serial port of RTA is configured with HDLC protocol, and the serial port of RTB is configured with PPP protocol.
Both devices are configured with the correct IP address, then what will happen is ______. (Multiple choice)
- A. RTA serial port physical layer down, protocol layer down
- B. RTB serial port physical layer up, protocol layer down
- C. The physical and protocol layers of RTA and RTB serial ports are both down
- D. The physical layer of the RTB serial port is down, and the protocol layer is down.
- E. The physical layer of the RTA serial port is up, and the protocol layer remains up, but RTA cannot ping RTB
Answer: B
NEW QUESTION 251
After executing the display command on the switch SWA, the switch output is as follows:
<Switch>display link-aggregation summary
Aggregation Interface Type:
BAGG - Bridge-Aggregation, RAGG - Route-Aggregation
Aggregation Mode: S - Static, D - Dynamic
Loadsharing Type: Shar - Loadsharing, NonS - Non-Loadsharing
Actor System ID: 0x8000, 000f-e267-6c6a
AGG AGG Partner ID Select Unselect Share
Interface Mode Ports Ports Type
-------------------------------------------------- --------------------
BAGG1 S none 3 0 Shar
It can be judged from the above output ______. (Multiple choice)
- A. There is no active port in the aggregation group
- B. The type of aggregation group is dynamic aggregation
- C. The aggregation group contains 3 active ports
- D. The type of aggregation group is static aggregation
Answer: C,D
NEW QUESTION 252
In the switching network shown in the figure, all switches have enabled the STP protocol.
SWA was selected as the root bridge. According to the information in the figure, the ______ port should be set to the Blocking state
- A. P2 of SWB
- B. P1 of SWB
- C. P2 of SWC
- D. Insufficient information, unable to judge
- E. P1 of SWC
Answer: C
NEW QUESTION 253
Xiao L is a senior network technical engineer. He wants to design a relatively perfect IGP routing protocol independently. He hopes that the routing protocol has a great improvement in Cost. Then, when designing the cost of the routing protocol, which of the following factors should be considered? (Multiple choice)
- A. Link delay
- B. Link MTU
- C. Link reliability
- D. Link bandwidth
Answer: A,B,C,D
NEW QUESTION 254
The customer's network connection looks like:
HostA----GE0/0--MSR-1--S1/0-----WAN----S1/0--MSR-2--GE0/0----HostB
The customer's WAN network only supports synchronization, so the S1/0 interface of the two routers can run ______. (Multiple choice)
- A. PPP+OSPF
- B. HDLC+RIP
- C. PPP+RIP
- D. HDLC+OSPF
Answer: A,B,C,D
NEW QUESTION 255
The customer's router is connected to the operator's network through DCC, so which of the following interfaces on the router can realize DCC dial-up?
- A. PRI interface
- B. Async interface
- C. Dialer interface
- D. Serial interface
Answer: A,B,C,D
NEW QUESTION 256
Different priority levels can be configured for Telnet users on the MSR router. What is wrong about this priority level is ______. (Multiple choice)
- A. 3 is management level
- B. 1 is the monitoring level
- C. The smaller the value, the higher the user's priority
- D. 0 is the access level
- E. The smaller the value, the lower the user's priority
- F. 2 is device level
Answer: C,F
NEW QUESTION 257
The two routers of the customer are connected back to back by V.35 cables, and one of the routers has the following interface information: [MSR-Serial0/0]display interface Serial 0/0
Serial0/0 current state: UP
Line protocol current state: UP
Description: Serial6/0 Interface
The Maximum Transmit Unit is 1500, Hold timer is 10(sec)
Internet Address is 6.6.6.1/30 Primary
Link layer protocol is PPP
LCP opened, IPCP opened
From the above information, you can know ______. (Multiple choice)
- A. You can already ping the peer's address on this router. 6.6.6.2 It is impossible to judge whether the verification is passed, so the peer's address may not be able to ping
- B. This router has completed PPP negotiation with the remote device, and successfully established a PPP link
- C. The interface information prompts, the second IP address subordinate can also be configured under this interface
- D. The PPP PAP or CHAP verification option has been successfully completed between this router and the remote device. It is impossible to see in the question whether there is verification and whether it has passed
Answer: B,C
NEW QUESTION 258
The MAC address table on a layer 2 switch is shown in the figure.
When the switch receives a frame with a destination MAC address of 00-13-72-8E-4E-C4 from the E1/0/2 interface, the switch will ______ the frame. (Multiple choice)
- A. send out from E1/0/4 interface
- B. Discard directly
- C. send out from all interfaces on the switch
- D. Send out from the E1/0/2 interface
- E. Send out from the E1/0/1 interface
- F. Send out from the E1/0/3 interface
Answer: A,E,F
NEW QUESTION 259
The correct configuration command to enable DHCP service on the router is ______.
- A. [Router] dhcp
- B. [Router] dhcp enable
- C. [Router-dhcp-pool-0] dhcp enable
- D. [Router-dhcp-pool-0] dhcp
Answer: B
NEW QUESTION 260
IPv6 uses ______ notation to represent addresses.
- A. colon decimal
- B. dotted hexadecimal
- C. colon hexadecimal
- D. dotted decimal
Answer: C
NEW QUESTION 261
On the MSR router, use the ______ command to view the current running version of the device.
- A. display software
- B. display current-version
- C. display running
- D. display version
Answer: D
NEW QUESTION 262
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