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NEW QUESTION # 213
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 0.255.255.255 on MSR-2 cannot start OSPF on the GE0/0 interface of the router
- 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 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
Answer: A,C
NEW QUESTION # 214
The correct statement about STP, RSTP and MSTP is ______. (Multiple choice)
- A. STP cannot converge quickly. When the network topology changes, the originally blocked port will need to wait for a period of time before it becomes the forwarding state.
- B. MSTP is compatible with STP and RSTP.
- C. RSTP is an optimized version of the STP protocol. The delay for the port to enter the forwarding state is greatly shortened under certain conditions, which shortens the time required for the network to finally reach topological stability.
- D. MSTP can make up for the shortcomings of STP and RSTP. It can not only converge quickly, but also enable the traffic of different VLANs to be forwarded along their respective paths, thereby providing a better load sharing mechanism for redundant links.
Answer: A,B,C,D
NEW QUESTION # 215
The two routers of the customer are connected back-to-back through V.35 cables, and the PPP protocol is running on the V.35 interface, and the following interface information is available on one of the routers:
[MSR-Serial0/0]display interface Serial 0/0
Serial6/0 current state: UP
Line protocol current state: DOWN
From the above information, it can be inferred that ______. (Multiple choice)
- A. PPP verification may have failed
- B. The IP addresses of the V.35 interfaces of the two routers may not be in the same network segment
- C. The physical connection between the two routers is normal, but the PPP protocol negotiation is not successful
- D. The LCP negotiation of PPP may not pass
Answer: A,C,D
NEW QUESTION # 216
The network administrator of a certain enterprise needs to set a subnet mask to divide the class C network 211.110.10.0 that he is responsible for into at least 8 subnets. How many subnet masks can be used for division? (multiple choice)
- A. 0
- B. 1
- C. 2
- D. 3
- E. 4
Answer: A,B,D
NEW QUESTION # 217
Normally, the router will fragment packets whose length is greater than the interface MTU.
In order to detect the line MTU, you can ping the destination address with the ______ parameter.
- A. -f
- B. -d
- C. -c
- D. -a
Answer: A
NEW QUESTION # 218
Which of the following is the correct IPv6 address? (multiple choice)
- A. 2001:410:0:1::45FF
- B. 2001:410:0:1:0:0:0:0:45FF
- C. 2001:410:0:1:0:0:0:45FF
- D. 2001:410:0:1:45FF
Answer: A,C
NEW QUESTION # 219
The following statement about frame relay address mapping is correct ______. (Multiple choice)
- A. Frame relay address mapping can be dynamically maintained using Inverse ARP.
- B. Frame relay address mapping is to associate the DLCI of the local device with the DLCI of the opposite device.
- C. Frame relay address mapping can be manually configured.
- D. When carrying the IP protocol, frame relay address mapping is used to associate the next hop IP address with the local DLCI.
Answer: A,C,D
NEW QUESTION # 220
The correct statement about the OSI reference model is ______.
- A. The data of the network layer is called segment (Segment)
- B. The data of the physical layer is called bit (Bit)
- C. The data of the transport layer is called a frame (Frame)
- D. The data at the data link layer is called a packet (Packet)
Answer: B
NEW QUESTION # 221
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 OSPF
- C. Visit the information technology website in Shanghai
- D. Learn routing with the operator through RIP
Answer: A,B,C,D
NEW QUESTION # 222
SSH uses the TCP port number ______ by default.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION # 223
On the MSR router, the configuration file is a file saved in ______ format.
- A. Batch file
- B. database file
- C. text file
- D. executable file
Answer: C
NEW QUESTION # 224
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. 1, 5, 9
- B. 1, 6, 11
- C. 3, 6, 9
- D. 2, 6, 10
Answer: B
NEW QUESTION # 225
On MSR routers, the -m parameter of the ping command specifies the time interval for sending ICMP Echo Request packets, ranging from 1 to 65535 in milliseconds, and its default value is ______ milliseconds.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION # 226
On the MSR router, when you delete a file using the delete command without parameters, the deleted file will be saved in ______.
- A. Memory
- B. RAM
- C. Recycle-bin
- D. ROM
Answer: C
NEW QUESTION # 227
Two empty-configured MSR routers are interconnected back-to-back through their respective GE0/0 interfaces, and their interconnection network segment is 192.168.1.0/30. After the IP addresses are correctly configured, the GE0/0 interfaces of the two routers can communicate with each other. Now the following OSPF configurations are added to the two routers:
ospf 1
area 0.0.0.1
network 192.168.1.0 0.0.0.3
So which of the following statements are correct?
- A. An OSPF route will appear in the RTA routing table
- B. A stable OSPF adjacency relationship can be established between the two routers, but there is no OSPF route in the routing tables of RTA and RTB
- C. Area 0 is not configured, and a stable OSPF adjacency relationship cannot be established between the two routers
- D. No Router ID is configured, and a stable OSPF adjacency relationship cannot be established between the two routers
Answer: B
NEW QUESTION # 228
What is wrong about the IP address below is ______. (Multiple choice)
- A. The first octet of a class C IP address starts with 100.
- B. Address translation (NAT) technology is usually used to solve the conversion of class A addresses to class C addresses.
- C. The network number of the Class A IP address has 8 digits, and the actual variable number is 7 digits.
- D. IP address consists of two parts: network number and host number.
Answer: A,B
NEW QUESTION # 229
The correct statement about the IP address below is ______. (Multiple choice)
- A. The network number of the Class A IP address has 8 digits, and the actual variable number is 7 digits.
- B. Address translation (NAT) technology is usually used to solve the conversion of class A addresses to class C addresses.
- C. IP address consists of two parts: network number and host number.
- D. Class D IP addresses are usually used as multicast addresses.
Answer: A,C,D
NEW QUESTION # 230
The rate of the D channel in ISDN PRI is ______.
- A. 64 Kbps
- B. 54 Kbps
- C. 36 Kbps
- D. 16 Kbps
Answer: D
NEW QUESTION # 231
The user router S0/0 is connected to the frame relay network, and the following information is displayed on the interface of the router: Serial1/1 current state:UP Line protocol current state:DOWN Internet Address is 3.3.3.2/24 The protocol state of the interface is DOWN, Then analyze ______ accordingly.
- A. The interface may encapsulate the PPP protocol
- B. The physical link may be faulty
- C. The encapsulated LMI type may be inconsistent with the remote end
- D. If the interface is encapsulated with the Frame Relay protocol, the status of the PVC should be DOWN at this time
Answer: A,C
NEW QUESTION # 232
The following statement about the characteristics of PPP is correct. (Multiple choice)
- A. PPP supports authentication, including PAP authentication and CHAP authentication
- B. PPP can negotiate network addresses
- C. PPP is supported on synchronous and asynchronous links
- D. PPP can dynamically allocate IP addresses
Answer: A,B,C,D
NEW QUESTION # 233
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. P1 of SWC
- B. P1 of SWB
- C. P2 of SWB
- D. Insufficient information, unable to judge
- E. P2 of SWC
Answer: E
NEW QUESTION # 234
In the Open System Interconnection Reference Model (OSI), ______ transmits data streams in the form of frames.
- A. Session layer
- B. Data link layer
- C. Network layer
- D. Transport layer
Answer: B
NEW QUESTION # 235
As shown in the figure, the three MSR routers run OSPF and RIP respectively.
Now that the OSPF neighbor status between RTA and RTB is stable, and the RIPv2 between RTB and RTC is also working normally, then within 40 minutes from this moment, ______. (Multiple choice)
- A. RTB has sent all its routing table information to RTC at least 10 times
- B. There must be a packet with a multicast address of 224.0.0.5 in the network
- C. RTB has sent its own LSA summary information to RTA at least once
- D. There must be a packet with a multicast address of 224.0.0.13 in the network
Answer: B,C
NEW QUESTION # 236
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. 2001:41:0:1:0:0:0:45FF
- B. 2001:410:0:1:0:0:0:45FF
- C. 2001:410:0:1::45FF
- D. 2001:410::1::45FF
Answer: A,B
NEW QUESTION # 237
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