Constructing Small – and Medium – Sized Enterprise Network GB0-191-ENU Dumps

1. The following equipment working on the data link layer of the OSI reference model is ______ .

2. Which of the following statements about fiber optics are wrong ? (Multiple Choice)

3. The broadcast address of the natural classification network segment corresponding to the IP address 202.135.111.77 is _____________ .

4. During the establishment of the TCP connection as shown in the figure , the Z part of SYN should be filled in ________ .

5. The default control protocol port used by FTP is ______ .

A. 20

B. 21

C. 23

D. 22

6. Use the ______ command to specify the operating system software to be used next time.

7. Normally, the router will fragment packets longer than the interface MTU .

In order to detect the line MTU , you can ping the destination address with the ______ parameter .

8. If a port running STP in the Ethernet switch does not receive or forward data, receives and sends BPDUs , and does not perform address learning, then the port should be in the ______ state.

9. In the switching network shown in the figure, all switches have enabled the STP protocol.

SWA was chosen as the root bridge. According to the information in the figure, the _______ port should be placed in the Blocking state. (Multiple choices)

10. The command to configure the bridge SWA bridge priority to 0 is ______ .

11. The IP address 10.0.10.32 and the mask 255.255.255.224 represent a ______ .

12. The subnet mask of the IP address 132.119.100.200 is 255.255.255.240 , so the broadcast address of the subnet where it is located is ______ .

13. The well-known port number of the transport layer used by TFTP is ______ .

14. In the Windows operating system, which command can display ARP entry information ?

15. The customer's network connection looks like:

HostA----GE0/0--MSR-1--S1/0-----WAN-----S1/0--MSR-2--GE0/0----HostB

The two MSR routers are interconnected through the WAN, and the physical connection is now normal. MSR-1 interface S1 / 0 address 3.3.3.1/30 , the MSR-2 interface S1 / 0 address 3.3.3.2/30 , now MSR-1 on three static routes configured as follows:

ip route-static 192.168.1.0 255.255.255.0 3.3.3.2

ip route-static 192.168.2.0 255.255.255.0 3.3.3.2

ip route-static 192.168.0.0 255.255.255.0 3.3.3.2

The 192.168.0.0/22 subnet is the LAN segment where HostB is located.

So which of the following is correct ? (Multiple choice)

16. Which of the following routing protocols only care about the distance and direction to the destination network segment ? (Multiple Choice)

17. The two empty MSR routers are connected by the way shown in the figure. By configuring the IP address, the GE0 / 0 interfaces of the two routers can communicate with each other.

Now the following configurations are added to the two routers:

RTA:

[RTA]ospf

[RTA-ospf-1]area 0

[RTA-ospf-1-area-0.0.0.0]network 192.168.1.1 0.0.0.3

[RTA-GigabitEthernet0/0]ospf dr-priority 2

DAF:

[RTB]ospf [RTB-ospf-1]area 0

[RTB-ospf-1-area-0.0.0.0]network 192.168.1.1 0.0.0.3

[RTB-GigabitEthernet0/0]ospf dr-priority

Then after the OSPF neighbor state is stable, ______ .

18. There is a default route in the router's routing table, the destination network segment and mask are 0.0.0.0 , and the next hop is the router's S0 / 0 interface, then the following description of this route is correct ______ . (Multiple choices)

19. 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 ______ .

20. An empty configuration MSR router RTA is connected to two routers RTB and RTC running in OSPF Area 0 through GE0 / 0 and GE1 / 0 respectively . RTA interface GE0 / 0 and GE1 / 0 of the IP addresses are 192.168.3.2/24 and 192.168.4.2/24 . Add the following configuration on RTA :

[MSR-ospf-1] area 0.0.0.0

[MSR-ospf-1-area-0.0.0.0]network 192.168.0 0.0.3.255

[MSR-GigabitEthernet0/0]ospf cost 2

[MSR-GigabitEthernet1/0]ospf dr-priority 0

Then the correct description about the above configuration is _____ . (Multiple choices)

21. The client router's interface GigabitEthernet0 / 0 is connected to the LAN host HostA , and its IP address is 192.168.0.2/24 ;

Interface Serial6 / 0 interface is connected to the far end and is currently operating normally. The ACL configuration is now added as follows:

firewall enable

firewall default permit

acl number 3003

rule 0 permit tcp

rule 5 permit icmp

acl number 2003

rule 0 deny source 192.168.0.0 0.0.0.255

interface GigabitEthernet0/0

firewall packet-filter 3003 inbound

firewall packet-filter 2003 outbound

ip address 192.168.0.1 255.255.255.0

interface Serial6/0

link-protocol ppp

ip address 6.6.6.2 255.255.255.0

Assuming that other related configurations are correct, then ______ . (Multiple choices)

22. In the network environment shown in the figure , perform the following NAT configuration on RTA :

[RTA]acl number 2000

[RTA-acl-basic-2000]rule 0 permit source 100.0.0.0 0.0.0.255

[RTA-acl-basic-2000]nat address-group 1 200.76.28.11 200.76.28.11

[RTA] interface Ethernet0 / 1

[RTA-Ethernet0/1]nat outbound 2000 address-group 1

After configuration, client_a and Client_B are accessing Server , at this time RTA 's NAT table may be ______ .

23. In the network environment shown in the figure, the two routers are connected back to back with serial ports. The speed of the interconnection link should be set to 2Mbps . The following statement is correct ______ .

24. When configuring ISDN DCC , the customer configures the following dialer-rule on his MSR router :

[MSR] dialer-rule 1 acl 3000

So which of the following statements about this configuration are correct ? (Multiple Choice)

25. Two empty-configured MSR routers RTA and RTB are interconnected back to back through their respective Serial1 / 0 interfaces. Make the following configurations 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 following statement is correct ______ . (Multiple choices)

26. The following description of the star network topology is correct ______ . (Multiple choices)

27. The following description of the star network topology is wrong ______ . (Multiple choices)

28. The following description of circuit switching and packet switching is correct ______ . (Multiple choices)

29. The following description of circuit switching and packet switching is correct ______ . (Multiple choices)

30. The network delay ( delay ) defines the time required for the network to transfer data from one network node to another network node. The network delay includes ______ . (Multiple choices)

31. The hub ( Hub ) works in the ______ of the OSI reference model .

32. Which of the following layers does the TCP / IP protocol stack include ? (Multiple Choice)

33. The device that realizes network interconnection on the network layer is ______ .

34. In the Open System Interconnection Reference Model ( OSI ), ______ transmits data streams in the form of frames.

35. Which of the following advantages does the OSI reference model have ? (Multiple Choice)

36. Which of the following advantages does the OSI reference model have ? (Multiple Choice)

37. The following statement about the functions of each layer of the OSI reference model is correct ______ . (Multiple choices)

38. Here on OSI statement reference functions of each model error is ______ .

39. The following statement about the functions of each layer of the OSI reference model is correct ______ . (Multiple choices)

40. The following statement about the OSI reference model is correct ______ .

41. The main function of the physical layer of the OSI reference model is ______ .

42. The IP protocol corresponds to layer ______ of the OSI reference model .

43. In the OSI reference model, the function of the network layer is mainly ______ .

44. Data segmentation is done in ______ in the OSI reference model .

45. The to-end reliable data transfer and flow control is the OSI reference model ______ .

46. In the OSI reference model, encryption is a function of ______ .

47. TCP belongs to ______ of OSI reference model .

48. UDP belongs to ______ of the OSI reference model .

49. SPX belongs to ______ of the OSI reference model .

50. DNS works on the OSI reference model ______ .

51. Connect two switches with an Ethernet cable, and the MDI type of the interconnection port is configured as across , then this Ethernet cable should be ________ .

52. The following statement about CSMA / CD is correct ______ . (Multiple choices)

53. Which of the following statements about MAC addresses are correct ? (Multiple Choice)

54. Which of the following statements about MAC addresses are wrong ? (Multiple Choice)

55. Which of the following statements about fiber optics are correct ? (Multiple Choice)

56. WLAN ( Wireless LAN ) is the product of the combination of computer network and wireless communication technology. Which of the following are WLAN technical standards ? (Multiple choice)

57. The 802.11b protocol defines 14 channels in the 2.4 GHz frequency band , and there is overlap in spectrum between adjacent channels.

In order to maximize the use of frequency band resources, which of the following channels can be used for wireless coverage ?

58. The 802.11b protocol defines 14 channels in the 2.4 GHz frequency band , and there is overlap in spectrum between adjacent channels. In order to maximize the use of frequency band resources, which of the following channels can be used for wireless coverage ?

59. There are many kinds of WAN interfaces. The following description of the WAN interface is wrong ______ .

The AV24 protocol interface can work in both asynchronous and asynchronous modes. In asynchronous mode, the link layer uses PPP encapsulation.

The BV35 protocol interface can work in both asynchronous and asynchronous modes. In asynchronous mode, the link layer uses PPP encapsulation.

C. BRI / PRI interface is used for ISDN access, the default link encapsulation is PPP

The DG703 interface provides high-speed data synchronization communication services.

60. There are many kinds of WAN interfaces. The following description of WAN interfaces is correct ______ . (Multiple choices)

The AV24 protocol interface can work in both asynchronous and asynchronous modes. In asynchronous mode, the link layer uses PPP encapsulation.

The BV35 protocol interface can work in both asynchronous and asynchronous modes. In asynchronous mode, the link layer uses PPP encapsulation.

C. BRI / PRI interface is used for ISDN access, the default link encapsulation is PPP

The DG703 interface provides high-speed data synchronization communication services.

61. For the understanding of packet switching mode, the correct one in the following statement is ______ . (Multiple choices)

62. For the understanding of packet switching mode, the correct one in the following statement is ______ . (Multiple choices)

63. A company that establishes a company network needs to connect to a wide area network. The bandwidth of the connection is required to be greater than 1Mbps . Which of the following interfaces and protocols are available ? (Multiple choice)

AV35 protocol interface and cable, using PPP as the link layer protocol

BV35 protocol interface and cable, using Frame Relay as the link layer protocol

C. PRI interface and cable, bundle multiple time slots, use PPP as the link layer protocol

D. BRI interface and cable, bundle multiple time slots, use PPP as the link layer protocol.

64. The two routers of the customer are connected back to back through V.35 cable, 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 choices)

65. The two routers of the customer are connected back-to-back via V.35 cable, and the PPP protocol is running on the V.35 interface , and the following interface information is on one of the routers:

[MSR-Serial0/0]display interface Serial 0/0

Serial6/0 current state: UP

Line protocol current state: DOWN

As can be inferred from the information ______ . (Multiple choices)

66. The main link of a company's MSR router is the synchronous asynchronous serial port, which is connected to the operator's network through a V.35 cable; the router also uses an ISDN BRI interface as a backup link.

So regarding line bandwidth, which of the following statements are correct ? (Multiple Choice)

67. ping is actually an application developed based on the ______ protocol.

68. The IP address 203.108.2.110 is the ______ address.

69. The IP address 133.18.2.110 is the ______ address.

70. When the source host pings the destination device, if the network is working properly, the destination device will respond to the source host with an ICMP______ message after receiving the message.

71. The broadcast address of the natural classification network segment corresponding to the IP address 125.1.1.1 is ____________ .

72. The number of available host addresses included in the natural classification network segment corresponding to the IP address 172.15.1.1 is ___________ . (Please fill in Arabic numerals)

73. The number of available host addresses contained in the natural classification network segment corresponding to the IP address 165.110.20.67 is (Please fill in Arabic numerals)

74. According to different sources, the routes in the routing table can generally be divided into the following categories ? (Multiple choice)

75. The following statement about the IP address is correct ______ . (Multiple choices)

76. The network address of the natural classification network segment corresponding to the IP address 112.1.1.1 is.

77. The IP address 192.48.117.22 corresponds to the network address of the natural classification network segment.

78. The following statement about the IP address is correct ______ . (Multiple choices)

79. The following statement about the IP address is wrong ______ . (Multiple choices)

80. The following statement about the IP address is correct ______ . (Multiple choices)

81. The following statement about the IP address is correct ______ . (Multiple choices)

82. Which of the following options describe the parameters that can uniquely determine a TCP connection ?

83. The TCP protocol uses ______ to distinguish between different connections.

84. The common fields of the UDP protocol and TCP protocol header are ______ . (Multiple choices)