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NEW QUESTION # 126
The following devices working at the data link layer of the OSI reference model are ______.

• A. WAN switch
• B. Repeater
• C. Router
• D. Hub

Answer: A

NEW QUESTION # 127
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. Serial interface
• C. Dialer interface
• D. Async interface

Answer: A,B,C,D

NEW QUESTION # 128
Which of the following statements about IP addresses are correct is ______. (Multiple choice)

• A. IP address is usually expressed in dotted decimal notation, for example: 10.110.168.121
• B. IP address consists of two parts: network number and host number
• C. The IP address with all 1s in the host number is called the network address, which is used to identify all hosts on a network
• D. The first byte of class A address is 0~126 (127 is reserved for other use)

Answer: A,B

NEW QUESTION # 129
The broadcast address of the natural classification network segment corresponding to the IP address 202.135.111.77 is _____________.

Answer:

Explanation:
202.135.111.255

NEW QUESTION # 130
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. If the OSPF Cost value is not modified, then the LAN segment from RTA to RTB will be the GE link
• 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. On the GE link, RTA and RTB will still conduct DR and BDR elections

Answer: A,B,C,D

NEW QUESTION # 131
Regarding the compressed expression of the IPv6 address 2001:0410:0000:0001:0000:0000:0000:45FF, which of the following is correct? (multiple choice)

• A. 2001:410::1::45FF
• B. 2001:410:0:1::45FF
• C. 2001:41:0:1:0:0:0:45FF
• D. 2001:410:0:1:0:0:0:45FF

Answer: C,D

NEW QUESTION # 132
When configuring ISDN DCC, the customer configured the following dialer-rule on his MSR router:
[MSR] dialer-rule 1 acl 3000
Which of the following statements about this configuration are correct? (multiple choice)

• A. The correct configuration should be: [MSR] dialer-rule 1 acl 3000 permit
• B. No permit or deny is defined, configuration error
• C. Only packets matching ACL 3000 can trigger dialing
• D. Only data packets matching ACL 3000 will be sent by the router through the dial-up link

Answer: C

NEW QUESTION # 133
The customer's MSR router is connected to the operator's network through the S0/0 interface and to the internal network through the G1/0 interface. Currently, the network is operating normally, and customers can normally access all services on the Internet and Intranet through the router. Now the following configuration has been added to the MSR: ★ The original answer ABCD firewall enable firewall default deny acl number 3002 rule 0 deny tcp interface Serial0/0 link-protocol ppp firewall packet-filter 3002 inbound firewall packet-filter 3002 outbound So which of the following applications are possible Not affected _____.

• A. Learn routing with the operator through BGP
• B. Learn routing with the operator through RIP
• C. Learn routing with the operator through OSPF
• D. Visit the information technology website in Shanghai

Answer: A,B,C,D

NEW QUESTION # 134
The router discovery function in IPv6 Neighbor Discovery Protocol refers to ______.

• A. The router discovers the IPv6 address of the host in the network
• B. The host discovers the prefix and other configuration parameters of the router and its network
• C. The host discovers the IPv6 address of the router in the network
• D. The router discovers the prefix and other configuration parameters of the host in the network

Answer: B

NEW QUESTION # 135
Two empty-configured MSR routers RTA and RTB are interconnected back-to-back through their Serial1/0 interfaces. Do the following configuration on the two routers:
RTA: skip
[RouterA-Serial1/0] link-protocol fr ietf
[RouterA-Serial1/0] ip address 10.1.1.1 30
[RouterA-Seria11/0] fr map ip 10.1.1.2 30
RTB: [RouterB-Serial1/0] link-protocol fr ietf
[RouterB-Serial1/0] interface serial0/0.1
[RouterB-Serial1/0.1] ip address 10.1.1.2 30
[RouterB-Serial1/0.1] fr map ip 10.1.1.1 30
The physical link between the routers is good, so the correct statement below is ______. (Multiple choice)

• A. Can't ping 10.1.1.2 on RTA
• B. In the above configuration, if you only change the type of sub-interface serial0/0.1 on RTB to P2MP, then you cannot ping 10.1.1.2 on RTA.
• C. In the above configuration, if you only change the type of sub-interface serial0/0.1 on RTB to P2MP, then you can ping 10.1.1.2 on RTA
• D. DLCI is not configured on the two routers, and RTB cannot be pinged on RTA
• E. You can ping 10.1.1.2 on RTA

Answer: A,B

NEW QUESTION # 136
On the MSR router, the configuration file is a file saved in ______ format.

• A. text file
• B. database file
• C. Batch file
• D. executable file

Answer: A

NEW QUESTION # 137
The FTP protocol is a protocol based on ______.

• A. PX
• B. TCP
• C. UDP
• D. SSH

Answer: B

NEW QUESTION # 138
Two MSR routers MSR-1 and MSR-2 are connected through the WAN and dynamically complete remote route learning through RIPv2.
After stable for 2 minutes, the RIP update message from MSR-2 is received on MSR-1, which contains the route with Cost of 14, then ______. (Multiple choice)

• A. If the MSR-1 routing table originally contains the same route received from the neighbor, and its Cost is less than 14, the route will also be updated
• B. If there is no such route in the routing table of MSR-1, then the route will be added to the routing table of MSR-1
• C. If the routing table of MSR-1 originally has the route, and its Cost is less than 14, then the routing entry on MSR-1 will not be updated
• D. If the routing table of MSR-1 originally has the route, the routing entry will only be updated when its Cost is greater than 14.

Answer: A,B

NEW QUESTION # 139
The equipment that should be used in the box in the figure is ______.

• A. WAN switch
• B. Modem
• C. CSU/DSU
• D. Router

Answer: D

NEW QUESTION # 140
The following two static routes are sequentially configured on the router:
ip route-static 192.168.0.0 255.255.240.0 10.10.202.1 preference 100
ip route-static 192.168.0.0 255.255.240.0 10.10.202.1
So, which of the following statements is correct about these two routes?

• A. The router will only generate the second configured route, and its priority is 60
• B. The routing table will generate two routes to 192.168.0.0, and the two routes are load-sharing.
• C. The routing table will generate two routes to 192.168.0.0, and the two routes are mutual backups
• D. The router will only generate the second configured route, and its priority is 0

Answer: A

NEW QUESTION # 141
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 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
• C. 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
• 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,C

NEW QUESTION # 142
On the MSR router, once the system time is inaccurate, you can use the ______ command to adjust the system time.

• A. clock datetime
• B. set datetime
• C. clock
• D. time

Answer: A

NEW QUESTION # 143
The WAN link between the two routers MSR-1 and MSR-2 uses the PPP protocol. The two ends learn each other's routes by configuring RIP. Currently, the route learning is normal. Now the following commands are added to the RIP configuration of MSR-1:
[MSR-1-rip-1] silent-interface all
So ______ . (Multiple choice)

• A. After configuring this command, the RIP route in the MSR-2 routing table disappears immediately
• B. This command makes all interfaces of MSR-1 only receive routing updates without sending routing updates
• C. This command makes all interfaces of MSR-1 only send routing updates and not accept routing updates
• D. After configuring this command, the RIP route in the MSR-1 routing table disappears immediately

Answer: B

NEW QUESTION # 144
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