Basic Network Management

Tập hợp những câu hỏi và trả lời cơ bản về Network Management như QUESTION 1 You have a small office of computers. Each machine is responsible for its own security. What type of network are you running? A. Peer to peer B. Serverbased C. WAN D. None of the above QUESTION 2 Which type of network is most likely confined to a building or a campus? A. Local area network (LAN) B. Metropolitan area network (MAN) C. Wide area network (WAN) D. Global area network (GAN)

Basic Network Management

Exam A

QUESTION 1

You have a small office of computers Each machine is responsible for its own security What type of network are you running?

A Peer- to- peer

B

Server-based

C

WAN

D

None of the above

QUESTION 2

Which type of network is most likely confined to a building or a campus?

A

Local area network (LAN)

B

Metropolitan area network (MAN)

C

Wide area network (WAN)

D

Global area network (GAN)

QUESTION 3

Which of the following can concurrently provide and request services?

A

Server

B

Client

C

Peer

D

None of the above

QUESTION 4

UTP Category 5 uses how many twisted pair(s) of cables?

A

1

B

2

C

4

D

6

QUESTION 5

The most common connector used with UTP cable is:

A

RJ -11

B

RJ -45

C

RJ -48

D

RJ -54

QUESTION 6

Transmission rates of what speed are typical for UTP Category 5 cables? A

16 Mbps

B 25 Mbps

C 100 Mbps

D 1000 Mbps

QUESTION 7

Transmission rates of what speed are typical for UTP Category 3 cables?

A 10 Mbps

B 25 Mbps

C 100 Mbps

D 1000 Mbps

QUESTION 8

In order to connect two thinnet cable segments, we can use:

A BNC T connector

B BNC Barrel connector

C BNC Terminator

D None of the above

QUESTION 9

Which of the following cable types supports the greatest cable lengths?

A Unshielded twisted-pair

B Shielded twisted-pair

C Thicknet coaxial cable

D Thinnet coaxial cable

QUESTION 10

What are two advantages of UTP cable? ( choose 2)

A Low cost

B Easy installation

C High resistance to

Electromagnetic Interference

due to twists in cable

D Cabling of up to 500 meters

QUESTION 11

What are two disadvantages of the fiber-optic cable? ( choose2)

A Sensitive to Electromagnetic

Interference

B Expensive hardware

C Difficult to install

D Limited in bandwidth

QUESTION 12

In order to close and stop signal in the thinnet cable system, we can use:

A BNC T connector

B BNC Barrel connector

C BNC Terminator

D None of the above

QUESTION 13

If you see a group of networked computers connected to a central hub, you know that the network has what type of physical topology?

A Ring

B Star

C Bus

D None of the above

QUESTION 14

Generally, infrared can transmit with speed:

A 1 Mbps

B 2 Mbps

C 5 Mbps

D 10 Mbps

QUESTION 15

Which type of cables cannot be tapped into and data stolen?

A Coaxial

B Fiber- optic

C UTP

D STP

QUESTION 16

What is the maximum size of a 10 BASE-5 network?

A 100 meters

B 300 meters

C 1500 meters

D 2500 meters

QUESTION 17

Which topology uses UTP cable?

A 10BASE2

B 10BASE5

C 10BASE-T

D None of the above

QUESTION 18

Which topology uses Fiber-optic cable?

A 10BASE2

B 10BASE5

C 10BASE-T

D 10BASE-FL

QUESTION 19

SNMP is stand for:

A Simple Network Monitoring

Protocol

B Security Network Management

Protocol

C Simple Network Management

Protocol

D Security Network Modification

Protocol

QUESTION 20

You need to connect two systems that do not use the same communicating protocol To do so, you will need what type of device? (D)

A Bridge

B Router

C Hub

D Gateway

QUESTION 21

The WAN can be categorized by examining the differing characteristics of the network

environment: (choose 3)

A Is ownership of the network

public or private?

B Is the cost cheap or expensive?

C Is the network designed primarily

for voice or data traffic?

D Are connections dedicated or

switched?

QUESTION 22

Public WAN is concerned with: ( choose 2)

A Control and management of the

network from their own facilities

B Determines which services are

subject to tariff and at what rate

C Dictates the telecommunications

services

D Exclusive access to dedicated

links

QUESTION 23

The largest public WAN designed for data is :

A Public Switched Telephone

Network (PSTN)

B Internet

C Frame Relay

D X.25

QUESTION 24

There are three basic types of WAN switching services: ( choose 3 )

A Circuit-switched

B Packet-switched

C Cell-switched

D Permanent-switched

QUESTION 25

How many bits are in an IP address?

A 4

B 8

C 16

D 32

QUESTION 26

The network number plays what part in an IP address?

A It specifies the network to which

the host belongs

B It specifies the identity of the

computer on the network

C It specifies which node on the

subnetwork is being addressed

D It specifies which networks the

device can communicate with

QUESTION 27

The host number plays what part in an IP address?

A It designates the identity of the

computer on the network

B It designates which node on the

subnetwork is being addressed

C It designates the network to

which the host belongs

D It designates which hosts the

device can communicate with

QUESTION 28

What decimal number equals the binary number 11111111?

A 8

B 128

C 254

D 255

QUESTION 29

What binary number equals the hexadecimal number EC?

A 11101110

B 11101101

C 11101111

D 11101100

QUESTION 30

What hexadecimal number equals the decimal number 127?

A 1F

B 7F

C 3F

D FE

QUESTION 31

What is the broadcast address of the subnet address 172.16.8.159, subnet mask 255.255.255.192

A 172.16.255.255

B 172.16.8.127

C 172.16.8.255

D 172.16.8.191

QUESTION 32

What is the broadcast address of the subnet address 172.16.99.99, subnet mask 255.255.192.0

A 172.16.127.255

B 172.16.99.255

C 172.16.255.255

D 172.16.64.127

QUESTION 33

If you are using a class C network ID with two subnets and need 30 hosts per network, which of the following masks should you use?

A 255.255.255.0

B 255.255.255.252

C 255.255.255.224

D 255.255.255.192

QUESTION 34

What are the valid host range with an IP address of 222.37.2.50/24

A 222.37.2.48-222.37.2.66

B 222.37.2.49-222.37.2.62

C 222.37.0.0-222.37.255.254

D 222.37.2.0-222.37.2.255

E 222.37.2.1-222.37.2.254

QUESTION 35

Given an IP host address of 192.168.5.121 and a subnet mask of 255.255.255.248, what is the network number of the host?

A 192.168.5.12

B 192.169.5.121

C 192.169.5.120

D 192.168.5.120

QUESTION 36

Given an IP host address of 172.16.2.120 and a subnet mask of 255.255.255.0, what is the network number of the host?

A 172.16.2.0

B 172.16.255.255

C 172.16.0.120

D 172.16.2.120

QUESTION 37

What range of address can br used in the first octet of a Class B network address?

A 1-126

B 1-127

C 128-190

D 128-191

E 129-192

F 192-220

QUESTION 38

What is the broadcast address of subnet address 172.16.99.99 255.255.192.0?

A 172.16.99.255

B 172.16.127.255

C 172.16.255.255

D 172.16.64.127

QUESTION 39

What valid host range is the IP address 172.16.10.22, subnet mask 255.255.255.240 a part of :

A 172.16.10.20 through

172.16.10.22

B 172.16.10.17 through

172.16.10.30

C 172.16.10.1 through

172.16.10.255

D 172.16.10.16 through

172.16.10.23

QUESTION 40

Every IP consists of :

A Net ID

B Host ID

C Net ID and Host IP

D Net IP and Host IP

E Net ID and Host ID

QUESTION 41

127.0.0.1 is address:

A Internet address

B Loop-back address

C Class A

D Class B

QUESTION 42

Class B has default subnet masks :

A 255.255.0.0

B 255.255.255.0

C 255.255.255.255

D 255.0.0.0

QUESTION 43

Class C has default subnet masks :

A 255.255.127.0

B 255.255.255.0

C 255.255.255.255

D 255.192.0.0

QUESTION 44

An IP broadcast address :

A Host IP of all 1s

B Host ID of all 0s

C Net ID of all 1s

D Host ID of all 1s

QUESTION 45

Which cable type is ideal for connecting between two buildings?

A UTP

B STP

C Coaxial

D Fiber-optic

QUESTION 46

In order to close and stop signal in the thinnet cable system, we can use:

A BNC T connector

B BNC Barrel connector

C BNC Terminator

D None of the above

QUESTION 47

If you see a group of networked computers connected to a linear, you know that the network has what type of physical topology?

A Ring

B Star

C Bus

D None of the above

QUESTION 48

If you see a group of networked computers connected to another in a daisy chain, you know that the network has what type of physical topology?

A Ring

B Star

C Bus

D Mesh

QUESTION 49

What is the maximum of computer on each segment in a 10 BASE-5 network?

A 10

B 15

C 100

D 125

QUESTION 50

Which topology uses Thicknet cable?

A 10BASE2

B 10BASE5

C 10BASE-T

D None of the above

QUESTION 51

Which topology uses UTP cable?

A 10BASE2

B 10BASE5

C 10BASE-T

D None of the above

QUESTION 52

What binary number equals the decimal number 127?

A 00011111

B 00111111

C 01111111

D 11111111

QUESTION 53

If a class B network is subnneted with a mask of 255.255.254.0, how many usable subnets are created?

A 62

B 64

C 126

D 128

QUESTION 54

Class B has default subnet masks :

A 255.255.0.0

B 255.255.255.0

C 255.255.255.255

D 255.192.0.0

Exam B

QUESTION 1

Which of the following types of topology has at least two network connections on every device on the network?

A Bus

B Mesh

C Ring

D Star

QUESTION 2

Which of the following network topologies is the most fault tolerant?

A Mesh

B Hierarchical star

C Ring

D Star

QUESTION 3

Which of the following represents the best solution for connecting three computers in a LAN?

A Peer-to-peer

B Server-based

C Direct connect

D Router-based

QUESTION 4

Which of the following network types is easiest to add new nodes to?

A Ring

B Star

C Bus

D Mesh

QUESTION 5

Which of the following is not an advantage of the star topology compared to the mesh topology?

A Easy to manage

B Easy to add nodes

C Low overhead

D High fault-tolerant

QUESTION 6

Which of the following is not a common logical topology?

A Bus

B Ring

C Star

D Mesh

QUESTION 7

You are connecting a network storage system to a LAN using 1000BASE-SX connections What type of cabling are you using?

A Single mode fiber-optic cabling

B CAT6 cabling

C Multimode fiber-optic cabling

D SCSI cabling

QUESTION 8

You are making some category 5 twisted-pair cables and have run out of connectors What type

of connector should you order from your supplier?

A RJ-45

B RJ-11

C BNC

D ST

QUESTION 9

Which of the following uses an RJ-45 connector?

A Coaxial cable

B UTP cable

C Fiber-optic cable

D Thinnet cable

QUESTION 10

Select the best networking media for a new installation in which 10 clients are connected to a hub

in a 100BASE-T network

A Category 3 UTP

B RG-58

C Fiber optic

D Category 5 UTP

QUESTION 11

A large LAN has been segmented into two separate LANs Which network element is the best choice for connecting the two LANs?

A A gateway

B A hub

C A router

D A NIC

QUESTION 12

Which of the following best describes active hubs and repeaters?

A Repeaters link network

segments while active hubs do

not

B Both active hubs and repeaters

restore signals

C Repeaters restore signal

integrity while active hubs do

not

D Neither active hubs nor

repeaters link network

segments

QUESTION 13

To directly connect the NIC cards in two personal computers, what's needed?

A Hub

B Crossover cable

C Router

D Bridge

QUESTION 14

What is the function of a repeater?

A To boost the signal strength and

restore its shape

B To reconcile MAC and IP

addresses

C To connect different networks

D To connect Ethernet and token

ring LANs

QUESTION 15

For a device to be compatible with the 802.11a standard, what is the minimum connection speed

at which it must be able to operate?

A 9Mbps

B 5.5Mbps

C 2Mbps

D 11Mbps

QUESTION 16

Which of the following best describes the function of a MAC address?

A It's used to physically locate a

device on a network.

B It's used to logically locate a

device on a network

C It's used to route packets

between networks

D It's used to assign workstations

to specific hub ports

QUESTION 17

Which utility can you use to find out the MAC address of your workstation?

A Ipconfig

B Ping

C Arp

D Tracert

QUESTION 18

An Ethernet frame is to be transported across the Internet using TCP/IP Which of the following is true?

A MAC addresses are checked at

each router

B IP addresses are updated at

each router

C TCP is discarded at each router

D IP addresses are discarded at

each router

QUESTION 19

Which layer of the OSI model is responsible for encryption and decryption?

A Network

B Presentation

C Session

D Physical

QUESTION 20

Which of the following OSI layers establishes, manages, and breaks communication sessions between applications?

A Session

B Application

C Presentation

D Network

QUESTION 21

Which layer of the OSI model is responsible for establishing a reliable connection?

A Network

B Session

C Transport

D Data Link

QUESTION 22

At what layer of the OSI model are logical addresses (IP addresses) assigned?

A Data Link

B Application

C Physical

D Network

QUESTION 23

Email and FTP work at which layer of the OSI model?

A Application

B Session

C Presentation

D User

QUESTION 24

At which layer of the OSI model is the protocol HTTP associated?

A Session

B Application

C Network

D Presentation

QUESTION 25

Which layer of the OSI model is responsible for electrical and mechanical specifications?

A Physical

B Application

C Data Link

D Session

QUESTION 26

Which of the following devices operates at the Network layer of the OSI model?

A Router

B Repeater

C Hub

D Switch

QUESTION 27

Which of the following devices operates at the Data Link as well as the Network layer?

A Hub

B Brouter

C Bridge

D Router

QUESTION 28

Which of the following devices is associated with the Physical layer?

A Switch

B NIC card

C Fiber optic cable

D Router

QUESTION 29

Which two of the following protocols are responsible for network addressing?

A IP

B TCP

C SPX

D IPX

QUESTION 30

To assign a static IP address to a workstation, which of the following must you do?

A Choose to obtain an IP address

automatically

B Specify the IP address and

subnet mask

C Specify only an IP address

D Choose to obtain the subnet

mask automatically

QUESTION 31

Given the IP address of 212.16.175.24 and a subnet mask of 255.255.0.0, what is the network address of the segment to which this node is connected?

A 212.16.175

B 212.16

C 212.16.24

D 212.16.175.24

QUESTION 32

Which of the following is not one of the private address ranges?

A 10.x.x.x

B 224.181.x.x

C 172.16.x.x

D 192.168.x.x

QUESTION 33

Which protocol is used to send email?

A NTP

B IMAP4

C POP3

D SMTP

QUESTION 34

Which of the following is responsible for receiving email?

A POP3

B SNMP

C ARP

D Telnet

QUESTION 35

The 802.11b standard describes what kind of network?

A Token passing

B Contention

C Wireless

D Token bus

QUESTION 36

What mask would you assign to the network ID of 172.16.0.0 if you needed more than 300 hosts with each subnet but fewer than 500?

A 255.255.254.0

B 255.255.255.0

C 255.255.255.255

D 255.255.0.0

QUESTION 37

If you a 12 bit subnet masks, which of the following is a valid host range for the IP address 172.16.10.33?

A 1-254

B 1-63

C 33-47

D 33-46

QUESTION 38

Class A has default subnet masks:

A 255.255.0.0

B 255.255.0.0

C 127.127.0.0

D 255.0.0.0

QUESTION 39

Class B has default subnet masks:

A 255.255.0.0

B 255.255.255.0

C 255.255.255.255

D 255.0.0.0

QUESTION 40

Class C has default subnet masks:

A 255.255.127.0

B 255.255.255.0

C 255.255.255.255

D 255.192.0.0

QUESTION 41

An IP broadcast address:

A Host IP of all 1s

B Host ID of all 0s

C Net ID of all 1s

D Host ID of all 1s

QUESTION 42

If a class B network is subnneted with a mask of 255.255.248.0, how many usable subnets are created?

A 2

B 4

C 16

D 30

QUESTION 43

If a class B network is subnneted with a mask of 255.255.252.0, how many usable subnets are created?

A 62

B 64

C 124

D 128

QUESTION 44

If a class B network is subnneted with a mask of 255.255.254.0, how many usable subnets are created?

A 62

B 64

C 126

D 128

QUESTION 45

If a class B network is subnneted with a mask of 255.255.255.0, how many usable subnets are