الموقع الشخصي ل محمد العلي

LSWN (CCNA-3 / CCNA-4) MOC EXAM

Section A:

Question 1:

1) Which of the following wildcard masks is most useful for matching all IP packets in Subnet 10.1.128.0, mask 255.255.255.0?

a) 0.0.0.0

b) 0.0.0.31

c) 0.0.0.240

d) 0.0.0.255

2) 3. Which of the following wildcard masks is most useful for matching all IP packets in Subnet 10.1.128.0, mask 255.255.240.0?

a) 0.0.0.0

b) 0.0.0.31

c) 0.0.0.240

d) 0.0.15.255

3) Segmentation of a data stream happens at which layer of the OSI model?

A. Physical

B. Data Link

C. Network

D. Transport

4) Which layer of the OSI provides translation of data?

A. Application

B. Presentation

C. Session

D. Transport

5) When data is encapsulated, which is the correct order?

A. Data, frame, packet, segment, bit

B. Segment, data, packet, frame, bit

C. Data, segment, packet, frame, bit

D. Data, segment, frame, packet, bit

6) Which of the following would describe a Transport layer connection that would ensure reliable delivery?

A. Routing

B. Acknowledgments

C. Switching

D. System authentication

7) Which of the following are considered some reasons for LAN congestion?

A. Broadcast storms

B. Low bandwidth

C. Too many users in a broadcast domain

D. All of the above

8) How do you connect to a router using HyperTerminal?

A. Connect the Ethernet port of your host to the Ethernet interface of the router using a rolled cable.

B. Connect the COM port of your host to the Ethernet port of your router using a straightthrough cable.

C. Connect the Ethernet port of your host to the console port of the router using a rolled cable.

D. Connect the COM port of your host to the console port of the router using a rolled cable.

9) Which of the following prompts indicates that you are in privileged mode?

A. >

B. (config)#

C. #

D. !

10) Which of the following commands sets the secret password to “Cisco”?

A. enable secret password Cisco

B. enable secret cisco

C. enable secret Cisco

D. enable password Cisco

11) Which of the following commands will reload the router?

A. Router>reload

B. Router#reset

C. Router#reload

D. Router (config)#reload

12) What command do you type to save the configuration stored in RAM to NVRAM?

A. Router(config)#copy current to starting

B. Router#copy starting to running

C. Router(config)#copy running-config startup-config

D. Router#copy run startup

13) What command will display all the valid commands at the given mode?

A. help

B. help all

C. ?

D. list

14) If you want to display all the commands in the history buffer, which command will you use?

A. Ctrl+Shift+6, then X

B. Ctrl+Z

C. show history

D. show history buffer

15) If your network is currently congested and you are using only hubs in your network, what would be the best solution to decrease congestion on your network?

A. Cascade your hubs.

B. Replace your hubs with switches.

C. Replace your hubs with routers.

D. Add faster hubs.

16) What does a switch do when a frame is received on an interface and the destination hardware address is unknown or not in the filter table?

A. Forwards the switch to the first available link

B. Drops the frame

C. Floods the network with the frame looking for the device

D. Sends back a message to the originating station asking for a name resolution

17) Which layer 2 device enables high-speed data exchange?

A. Repeater

B. Hub

C. Switch

D. Router

18) Which of the following is a characteristic of having a network segment on a switch?

A. The segment is many collision domains.

B. The segment can translate from one media to a different media.

C. All devices on a segment are part of a different broadcast domain.

D. One device per segment can send frames to the switch at a time.

19) Which of the following is true in regard to bridges?

A. Bridges do not isolate broadcast domains.

B. Bridges broadcast packets into the same collision domain they were received from.

C. Bridges use IP addresses to filter the network.

D. Bridges can translate from one media to a different media.

20) Which of the following are true regarding VLANs?

A. You must have at least two VLANs defined in every Cisco switched network.

B. All VLANs are configured at the fastest switch and, by default, propagate this information to all other switches.

C. You should not have more than 10 switches in the same VTP domain.

D. VTP is used to send VLAN information to switches in a configured VTP domain.

21) How does inter-VLAN communication take place?

A. Using a layer 2 switch

B. Using a router

C. Using a hub

D. Using a repeater

22) How are dynamic VLANs configured?

A. Statically

B. By an administrator

C. Via a DHCP server

D. Via a VLAN Management Policy Server

23) What is Cisco’s proprietary frame-tagging method?

A. 802.1Q

B. 802.3

C. ISL

D. VTP

24) Which switching technology reduces the size of a broadcast domain?

A. ISL

B. 802.1Q

C. VLANs

D. STP

25) What VTP allows you to change VLAN information on the switch?

A. Client

B. STP

C. Server

D. Transparent

26) What is the main purpose of creating VLANs?

A. Break up collision domains at layer 2

B. Break up collision domains at layer 3

C. Break up broadcast domains at layer 2

D. Break up broadcast domains at layer 3

27) Which of the following is true regarding VTP?

A. All switches are VTP servers by default.

B. All switches are VTP transparent by default.

C. VTP is on by default with a domain name of Cisco on all Cisco switches.

D. All switches are VTP clients by default.

28) Which of the following commands sets a trunk port on a 2950 switch?

A. trunk on

B. trunk all

C. switchport trunk on

D. switchport mode trunk

29) Which of the following is an IEEE standard for frame tagging?

A. ISL

B. 802.3Z

C. 802.1Q

D. 802.3U

30) Which of the following protocols is used to exchange VLAN configuration information between switches?

A. 802.10

B. VLAN Trunking Protocol (VTP)

C. Inter-Switch Link (ISL)

D. 802.1Q

31) Suppose that you have a customer who has a central HQ and six branch offices. They anticipate adding six more branches in the near future. They wish to implement a WAN technology that will allow the branches to economically connect to HQ. Which of the following would you recommend?

A. PPP

B. HDLC

C. Frame Relay

D. ISDN

32) Suppose that you had a working Frame Relay connection, but had a router failure. Someone on site replaced the failed router with a non-Cisco router. What are you most likely going to have to change to bring the circuit back up?

A. LMI type

B. Frame Relay encapsulation type

C. IP addressing information

D. DLCI

33) What is the default encapsulation on point-to-point links between two Cisco routers?

A. SDLC

B. HDLC

C. Cisco

D. ANSI

34) In Frame Relay, what identifies the PVC?

A. NCP

B. LMI

C. IARP

D. DLCI

35) Suppose that you have a leased T1 line connected to a Cisco router and a non-Cisco router. Which of the following encapsulation types will you most likely use?

A. SLIP

B. HDLC

C. Frame Relay

D. PPP

Section B:

Question 1:

In the following exhibit, identify the number of collision domains and broadcast domains in each specified device. Each device is represented by a letter:

A. Hub

B. Bridge

Answer:

1. Hub: One collision domain, one broadcast domain

2. Bridge: Two collision domains, one broadcast domain