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NEW QUESTION # 78
A company needs to connect to the WAN to form a corporate network, and the bandwidth of the connection is required to be greater than 1Mbps. Which of the following interfaces and protocols are available?
- A. V.35 protocol interface and cable, using PPP as the link layer protocol
- B. V.35 protocol interface and cable, using Frame Relay as the link layer protocol
- C. BRI interface and cable, bundling multiple time slots, using PPP as the link layer protocol.
- D. PRI interface and cable, bundle multiple time slots, use PPP as the link layer protocol
Answer: A,B,D
NEW QUESTION # 79
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. The type of aggregation group is dynamic aggregation
- B. The type of aggregation group is static aggregation
- C. The aggregation group contains 3 active ports
- D. There is no active port in the aggregation group
Answer: B,C
NEW QUESTION # 80
In the router's routing table, there is an entry for a route with a network segment of 10.168.100.0/24, with a Cost of 20 and a Preference of 255, so which of the following statements about this route are correct?
- A. The priority of this route is the highest value, which means any route from an untrusted source
- B. Cost 20 means that the hop count of the route is 20
- C. This is an effective dynamic route
- D. This route must be learned through dynamic routing
Answer: C,D
NEW QUESTION # 81
A routing protocol is a link state routing protocol, then which of the following characteristics should this routing protocol have? (multiple choice)
- A. The routing protocol algorithm can effectively prevent loops
- B. The routing protocol periodically sends update messages to exchange routing tables
- C. This routing protocol cares about the status of links or interfaces in the network
- D. The router running the routing protocol will form a weighted directed graph containing each destination network segment according to the collected link state information
Answer: A,C,D
NEW QUESTION # 82
The correct configuration command to enable DHCP service on the router is ______.
- A. [Router] dhcp
- B. [Router-dhcp-pool-0] dhcp enable
- C. [Router] dhcp enable
- D. [Router-dhcp-pool-0] dhcp
Answer: C
NEW QUESTION # 83
The router S0/0 interface is connected to the network through frame relay, and the following interface information can be seen on this router:
[MSR]display interface Serial 0/0
Serial0/0 current state: UP
Line protocol current state: UP
Internet Address is 3.3.3.1/24 Primary
Link layer protocol is FR IETF
LMI DLCI is 0, LMI type is Q.933a, frame relay DTE
LMI status enquiry sent 91, LMI status received 69
LMI status timeout 22, LMI message discarded 1
Then you know ______. (Multiple choice)
- A. This interface has sent 91 status query messages to query the PVC status of the interface
- B. The PVC status of the interface is already UP
- C. The virtual circuit number used by the interface is DLCI 0
- D. The LMI type of the interface package is Q.933a
Answer: A,D
NEW QUESTION # 84
On the MSR router, if you want to completely delete an obsolete file in the recycle bin, you can execute the ______ command.
- A. reset trash-bin
- B. clear trash
- C. reset recycle-bin
- D. clear all
Answer: C
NEW QUESTION # 85
The customer router connects to the operator's network through the S1/0 interface. The S1/0 interface uses the default configuration.
The following route is configured on the router: [MSR]ip route-static 0.0.0.0 0.0.0.0 Serial1/0
However, when viewing the routing table through display ip routing-table, it is found that the route is not displayed in the routing table. Based on this, it is speculated that the possible reason is ______. (Multiple choice)
- A. The configuration is wrong, you should exit to the system view to configure the route to take effect
- B. S1/0 interface is shutdown
- C. S1/0 interface has no IP address
- D. The configuration is wrong, the next hop of the route should enter the IP address of the opposite end instead of the interface name S1/0
Answer: B,C
NEW QUESTION # 86
Different priority levels can be configured for Telnet users on the MSR router. What is wrong about this priority level is ______. (Multiple choice)
- A. The smaller the value, the higher the user's priority
- B. 1 is the monitoring level
- C. 2 is device level
- D. The smaller the value, the lower the user's priority
- E. 0 is the access level
- F. 3 is management level
Answer: A,C
NEW QUESTION # 87
Common FTP file transfer types include ______. (Multiple choice)
- A. ASCII code type
- B. Binary type
- C. Local type
- D. EBCDIC type
Answer: A,B
NEW QUESTION # 88
In the process of establishing a PPP session, when the physical layer is unavailable, the PPP link is in the ______ phase.
- A. Network
- B. Authentication
- C. Terminate
- D. Dead
- E. Establish
Answer: D
NEW QUESTION # 89
An empty-configured MSR router is connected to the local LAN user through the GE0/0 interface, and directly connected to the remote router through the S1/0 interface. The IP addresses of GE0/0 interface and S1/0 interface are 10.1.1.1/24 and 172.16.1.1/30 respectively.
In order to ensure the intercommunication with remote LAN users, the following routes are configured on the MSR:
[MSR] ip route 10.20.0.0 255.255.255.0 s1/0
After the configuration, the MSR receives the data packet sent to the destination address 10.20.0.254/24. After the static route is found in the routing table, how will the MSR deal with the data packet next?
- A. Parse the MAC address of the S1/0 interface, update the destination MAC address, and then re-encapsulate the IP packet
- B. Encapsulate the IP packet into a frame conforming to the S1/0 interface link, and then forward it from the S1/0 interface
- C. The packet is discarded because the next hop address is not listed in the routing table
- D. The packet is discarded because the destination host is not listed in the routing table
- E. Find the IP address corresponding to interface S1/0, and then forward the IP packet from interface S1/0
Answer: B
NEW QUESTION # 90
A network administrator configured on a router
RIP: rip 1
version 2
network 100.0.0.0
network 8.0.0.0
However, it is found that the RIP route of the opposite end cannot be learned. The administrator needs to enable RIP debugging information on the router. Which of the following configurations can be used to view RIP debugging information on the router?
- A. <MSR>debugging rip 2
- B. [MSR] debugging rip packet
- C. <MSR>debugging rip packet
- D. <MSR>debugging rip 1 packet
Answer: D
NEW QUESTION # 91
The customer's network is composed of two MSR routers interconnected, and the RIPv1 protocol is running between the two MSRs. The dynamic route learning has been completed and the remote route has been learned. Now the customer will modify RIPv1 to RIPv2, then the following will happen What are the possible changes? (multiple choices)
- A. The routing entries in the routing table on the router may change
- B. The time interval for sending RIP update packets on the router will change
- C. The mask length of the remote route learned on the router may change
- D. The way the router sends RIP packets may change
Answer: A,C,D
NEW QUESTION # 92
The following routing information is seen on the MSR router running RIP:
<MSR>display ip routing-table 6.6.6.6
Routing Table: Public
Summary Count: 2
Destination/Mask Proto Pre Cost NextHop Interface
6.6.0/24 RIP 100 1 100.1.1.1 GE0/0
6.0.0.0/8 Static 60 0 100.1.1.1 GE0/0
At this time, the router receives a data packet with a destination address of 6.6.6.6, then ______.
- A. The packet will preferentially match the RIP route in the routing table because it has the longest mask
- B. The packet will first match the static route in the routing table because its cost is low
- C. The packet will match the RIP route in the routing table first, because of its high priority
- D. The packet will preferentially match the static route in the routing table because its mask is the shortest
Answer: A
NEW QUESTION # 93
There are two hops from the source device to the destination device. Use the tracert command to detect the path. When the first hop is detected, the source device sends a UDP packet with a TTL of 1 to a larger port of the destination device. When the packet reaches the middle hop, the TTL will change to 0, so the device responds to the source device. Respond to an ICMP______ message.
- A. Echo Request
- B. Time Exceeded
- C. Echo Reply
- D. Port Unreachable
Answer: B
NEW QUESTION # 94
In the OSI reference model, encryption is a function of ______.
- A. Transport layer
- B. Physical layer
- C. Presentation layer
- D. Session layer
Answer: C
NEW QUESTION # 95
If a port running STP in the Ethernet switch does not receive or forward data, receives but does not send BPDUs, and does not perform address learning, then the port should be in the ______ state.
- A. Waiting
- B. Learning
- C. Forwarding
- D. Listening
- E. Blocking
- F. Disable
Answer: E
NEW QUESTION # 96
If the data packet matches multiple routing entries in the routing table of the MSR router, the correct description of the order of routing preference is ______.
- A. The smaller the Cost value, the better the route
- B. The smaller the Preference value, the better the route
- C. The shorter the mask, the more preferred the route
- D. The longer the mask, the more preferred the route
Answer: D
NEW QUESTION # 97
The basic process of Layer 2 forwarding of an Ethernet switch includes ______.
- A. Search the MAC address table according to the destination MAC address, if no match is found, then broadcast in the VLAN corresponding to the message;
- B. If a match is found, but the port corresponding to the entry does not belong to the VLAN corresponding to the packet, then the frame is discarded;
- C. Add or refresh MAC address table entries according to the source MAC address and VLAN ID information of the received Ethernet frame;
- D. If a match is found and the port corresponding to the entry belongs to the VLAN corresponding to the packet, then the packet is forwarded to that port, but if the port corresponding to the entry is the same as the port that received the Ethernet frame, the packet is discarded. frame
Answer: A,B,D
NEW QUESTION # 98
The default subnet mask for class A addresses is ______.
- A. None of the above is correct
- B. 255.0.0.0
- C. 255.255.255.0
- D. 255.255.0.0
Answer: B
NEW QUESTION # 99
Two MSR routers are connected via Ethernet and serial interfaces respectively, as shown in the figure. The PPP link layer protocol is running on the serial link, and OSPF is running on the two routers, and both belong to Area 0. At the same time, the three network segments on each router (GE interface network segment) are published in Area 0 through the network command. , Serial interface network segment, LAN network segment);
At present, the OSPF neighbors on both ends are stable, so ______. (Multiple choice)
- A. On the GE link, RTA and RTB will still conduct DR and BDR elections
- B. As long as the OSPF Cost values of the GE interface and the serial interface of the two routers are correctly modified, then two equal-value routes to each other's LAN will be formed on RTA and RTB.
- C. All the above statements are correct
- D. If the OSPF Cost value is not modified, then the LAN segment from RTA to RTB will be the GE link
Answer: A,B,C,D
NEW QUESTION # 100
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