examNET


TEST 1
In order to find out your MAC address, you may open a command prompt and type  ifconfig /all.
Question options:
 
True

False
Question 2
Because fiber-optic cabling uses light pulses instead of electrical signals, it is immune to interference and highly resistant to eavesdropping.
Question options:
True

False
Question 3
What is one of the disadvantages of a peer-to-peer network compared to a server-based network?
Question options:
more difficult to setup and install

more expensive

higher administration costs

limited security
Question 4
What command would you issue from a command prompt to see a listing of the computers in your workgroup?
Question options:
arp -a

net view

ipconfig /all

ping
Question 5
Every NIC is embedded with a unique address that consists of a 12-digit hexadecimal value.  What is this address called?
Question options:
IP address

subnet mask

MAC address

default gateway
Question 6
Which of the following best describes a client?
Question options:
A computer's primary role in the network is to give other computers access to network resources and services.

A computer's primary role in the network is to run user applications and access network resources.

It's the software the responds to requests for network resources.

The OS installed on a computer is designed mainly to share network resources.
Question 7
You have just started a new business. You need to have three to four workstations available for your employees who simply need to share some files and a printer, but you don’t have a large budget. Security is not a major concern, but costs are. What type of network would be the most appropriate for your situation?
Question options:
internetwork

domain

peer-to-peer network

server-based network
Question 8
A device interconnects five computers and a printer in a single office so that users can share the printer. This configuration is an example of which of the following?
Question options:
LAN

MAN

WAN

Internetwork
Question 9
What is the maximum bandwidth for a network cabled using category 5e UTP cable?
Question options:
10 Mbps

16 Mbps

100 Mbps

1000 Mbps
Question 10
What is a disadvantage of using fiber-optic cabling?
limited to shorter distances due to high attenuation

low bandwidth potential

high susceptibility to eavesdropping

difficult to install
Question 11
What is the native file-sharing protocol in Linux?
SMB

NFS

NSF

SMP
Question 12
Which common e-mail protocol allows the user to access messages, yet still have them stored on the server?
Question options:
SMTP

IMAP

POP3

SNMP
Question 13
Which one of the following clients is used to get an IP address dynamically?
Question options:
DHCP client

DNS client

HTTP client

E-mail client
Question 14
Which of the following clients frequently referred as a "resolver"?
DHCP client

HTTP client

DNS client

File-sharing client
Question 15
HTTP uses TCP port ___ by default
21

25

80

443
Question 16
Which one of the following is NOT true?
A DNS client is responsible for communicating with a DNS server to resolve computer and domain names to IP addresses.

DNS servers require a domain name in addition to a computer name.

In Windows, the default domain appended to DNS lookup is called the primary DNS suffix.

A DNS client must run on a computer to get an IP address for the computer.
Question 17
Which one of the following is a correct UNC path?
C://Windows/System32/

C:\\Users\login\Desktop

C:/Users/login//Desktop

C:\Windows\System32
Question 18
A ________ consists of two insulated copper wires arranged in a regular spiral pattern.
cable

coaxial cable

twisted pair

optical fiber
Question 19
In ________ transmission signals are transmitted in only one direction; one station is the transmitter and the other is the receiver.
half duplex

full duplex

multipoint

simplex
Question 20
Two stations can simultaneously send and receive data from each other with ________ transmission.
two way alternate

half-duplex

terminal-to-computer

full-duplex
Question 21
A(n) ________ signal is a continuously varying electromagnetic wave that may be propagated over a variety of media, depending on spectrum.
aperiodic

analog

periodic

digital
Question 22
A ________ signal is a sequence of discrete voltage pulses that may be transmitted over a wire medium.
audio

text

digital

analog
Question 23
A reduction in strength is ________.
delay distortion

pulsing

attenuation

interlacing
Question 24
Wireless transmission occurring through the atmosphere, outer space or water is an example of ________.
guided media

unguided media

bandwidth

wavelength
Question 25
________ twisted pair is subject to external electromagnetic interference, including interference from nearby twisted pair and from noise generated in the environment
Standard

Coaxial

Shielded

Unshielded
Question 26
The transmission medium used for television distribution, long distance telephone transmission, and short run computer system links is ________.
optical fiber

coaxial cable

shielded twisted pair

unshielded twisted pair
Question 27
Typically used for long distance applications, ________ propagation provides superior performance because there is a single transmission path.
direct-line mode

step-index multimode

graded-index multimode

single-mode
Question 28
A ________ converts digital data to analog signal so that it can be transmitted over an analog line.
satellite

receiver

modem

router
Question 29
In ________, the two binary values are represented by two different amplitudes of the carrier frequency.
high density bipolar-3 zeros

frequency shift keying

phase shift keying

amplitude shift keying
Question 30
The ________ code has been specified for the IEEE 802.3 (Ethernet) standard for baseband coaxial cable and twisted pair bus LANs.
NRZI

NRZ-L

Manchester

differential Manchester
Question 31
In ________ the phase of the carrier signal is shifted to represent data.
ASK

MFSK

PSK

FSK
Question 32
The device used for converting analog data into digital form for transmission, and subsequently recovering the original analog data from the digital, is a ________.
QAM

ASK

codec

modem
Question 33
In ________ transmission each character begins with a start bit that alerts the receiver that a character is arriving.  The receiver samples each bit in the character and then looks for the beginning of the next character
digital

asynchronous

synchronous

analog
Question 34
In an ________ there is a cluster of bits in which a number of errors occur, although not necessarily all of the bits in the cluster suffer an error.
error burst

single-bit error

idle state

error detection
Question 35
What is the command to get an IP address of a domain name in command line?
Answer:
nslookup
Question 36
What is the command to check if a computer up and connected to the Internet?
Answer:
ping
Question 37
What is the command that could get MAC addresses for the computers in the local network?
Answer:
Arp -a




TEST 2
When a NIC is in “promiscuous” mode, it will process only the frames in which the destination MAC address matches its own MAC address.
Question options:
True
False
Question 2

Routers do not forward broadcast packets.
True
False
Question 3

You cannot connect a hub to another hub unless it has an uplink port.
True
False
Question 4


When a frame is received, which component reads the source and destination MAC addresses, looks up the destination to determine where to send the frame, and forwards it out the correct port?
router
switch
repeater
hub
Question 5

Which of the following is NOT a function of a hub?
cleans up the signal 
transmits the signal to the correct port 
receives the signal from a connected computer on one of its ports 
regenerates the signal
Question 6

How does a switch “learn” MAC addresses?
All the MAC addresses must be entered manually. 
The switch comes loaded with the most frequently used addresses. 
The switch reads each frame and makes a note of where each MAC address came from. 
The switch uses a mathematical formula to determine what the MAC address would be for each computer connected to it.
Question 7

Why is the use of a switch preferred over a hub?
Devices on a hub have to share the available bandwidth. 
Switches are intelligent; they read the frame and determine where to send it. 
Switches can operate in full-duplex mode. 
All of the above.
Question 8

What is a packet called that is intended for only one individual computer?
broadcast 
unicast 
multicast 
anycast
Question 9

Just as a switch keeps records of MAC addresses that it has learned, so does your computer. What protocol does your computer use to learn MAC addresses?
ARP 
ICMP 
DHCP 
IP
Question 10

What does it usually mean when the activity light on a switch is blinking?
It is malfunctioning. 
It is ready to receive data. 
It is communicating with the network. 
A collision is imminent.
Question 11


A MAC address is composed of two 24-bit numbers. What does the first 24-bit number represent?
It’s a unique serial number assigned by the manufacturer. 
It’s the address it uses for a multicast packet. 
It’s the decryption key used for security purposes. 
It’s the organizationally unique identifier for the manufacturer of the device.
Question 12

What is the purpose of the default route?
It serves as a guideline for how to configure routes. 
It’s a route set by Microsoft so that all information comes to their servers first. 
It’s where the router sends all packets with destinations of which it has no knowledge. 
None of the above
Question 13

A wireless access point is most like which other network device, in that all computers send signals through it to communicate with other computers?
Question options:
switch 
router 
hub 
modem
Question 14

When referring to network bandwidth, what is the basic unit of measurement?
bytes per second 
bits per second 
bandwidth per second 
bytes per minute
Question 15

The SSID is configured on which of the following so that it can be distinguished from other available wireless networks?
router 
access point 
switch 
repeater
Question 16

Which of the following is a feature of a router not in a switch?
connects computers to the LAN 
connects LANs to one another 
works with MAC addresses 
forwards broadcast packets
Question 17

Which of the following is NOT a true statement regarding the function of a switch?
It determines the path used based on the destination IP address. 
It sends broadcast frames out all connected ports. 
Each port on a switch represents a separate collision domain. 
Switches have the ability to operate in full-duplex mode.
Question 18

Which of the following combinations will you find in a switching table?
application/destination port number 
IP address/exit interface 
destination network/next Hop 
MAC address/switch port number
Question 19

Which of the following is the fastest switching mode?
cut-through 
fragment-free 
store-and-forward 
auto-negotiate
Question 20

Which of the following is the switching protocol that is used to eliminate the possibility of switching loops?
RIP 
SNMP 
NTP 
STP
Question 21

A wireless router is actually composed of three devices, a wireless access point and which two other devices?
a router and a hub 
a switch and a bridge 
a router and a switch 
a router and a bridge
Question 22

Which is the weakest form of wireless security?
WEP 
WPA 
WPA2 
WAP2
Question 23

The physical bus topology is no longer used because it required extra cable to connect all the computers and required a central device.
True
False
Question 24

Which of the following is NOT an advantage of a physical star?
easier network upgrades 
centralized monitoring and management of traffic 
use of faster technologies 
provides redundancy and node fault tolerance
Question 25

Which of the following is the physical topology that is daisy-chained like a bus and in which the cabling is brought around from the last device to the first device?
physical bus 
physical star 
physical ring 
point-to-point
Question 26

What type of logical topology is at work when using an Ethernet hub?
logical bus 
logical ring 
switched topology 
hierarchical topology
Question 27

Which of the following topology provides full redundant connection and the most expensive to implement?
bus
ring
tree
mesh
Question 28

What type of logical topology does a Wireless LAN use?
logical bus 
logical star 
switched topology 
hierarchical topology
Question 29

What does the frame trailer consist of in an Ethernet frame for error detection?
source MAC address 
destination MAC address 
frame payload 
frame check sequence
Question 30


What is the media access method used by Ethernet?
CSMA/CD 
CSMA/CARP 
CSMA/CA 
CDMA
Question 31

What is the IEEE standard governing wireless networking?
802.3 
802.5 
802.3ab 
802.11
Question 32

When a wireless computer uses a peer-to-peer connection to directly connect to another wireless computer, it is operating in what mode?
infrastructure 
ad hoc 
hot spot 
Wi-Fi
Question 33

Which layer is responsible for establishing a connection between the source and destination?
Question options:
Application 
Session 
Transport 
Presentation
Question 34

Put the layers of the OSI model in order from layer 7 to layer 1 (top to bottom).
a. Presentation
b. Network
c. Physical
d. Data Link
e. Transport
f. Application
g. Session
a., g., f., b., e., d., c. 
f., a., g., e., b., d., c. 
f., g., a., b., e., c., d. 
f., a., g., b., e., d., c.
Question 35

Which OSI layer handles flow control, data segmentation, and reliability?
Application
Transport
Network
Physical
Question 36

Which OSI layer matches with the IP layer in TCP/IP model?
Application
Transport
Network
Physical
Question 37

Which of the following is NOT an Application Layer protocol?
ARP
HTTP
FTP
SMTP
Question 38

What is the network that was the basis for the Ethernet?
ALOHA
ARP
DHCP
SMTP
Question 39

What is the method that used for encoding digital data in 802.11a, g, and n?
CDMA
DSSS
FHSS
OFDM
Question 40

What is the program that used for capturing network traffic?
Question options:
arp
ipconfig
netstat
wireshark
Question 41

What command issued from a command prompt will display the routing table? (Your answer should include argument(s) if needed)
Answer:
netstat -rn
Question 42

What is the command to show the route from the issuing computer to another computer?
Answer:
tracert

QUIZ 5
           
The Internetwork layer is the layer that handles network configuration and is considered the heart of the TCP/IP protocol suite.
 
True
 
False
Question 2
An IP address is composed of 48 bits that are grouped together into 8-bit octects and are represented by a decimal number from 0 to 255.
True

False
Question 3
In what layer does the NIC operate?
 
Network Access

Internetwork

Transport
 
Application
Question 4
An IP address consists of four octets separated by periods. Which part of this address denotes its class?
 
first octet

second octet

third octet
 
fourth octet
Question 5
How many host addresses are available on a Class C network?
254

256

65534

65536
Question 6
What is the network address of IP 192.168.0.5/24 ?
Answer:
192.168.0.0


                          Question 7
What is the direct broadcast address of IP 10.1.2.3/8 ?
Answer:
10.255.255.255
Question 8
What is the limitted broadcast address of IP 172.16.10.20/24 ?
Answer:
172.16.255
Question 9
A network with 255 computers can use 192.168.2.0/24 IP address block.
 
True
 
False
Question 10
Which one of the following IPs cannot be forwarded by your ISP's routers
1.1.1.1
10.10.10.10

100.100.100.100
200.200.200.200


QUIZ6

Question 1
Which protocol is responsible for determining the MAC address associated with each IP address and keeping a table of its results?
MAC

DNS

ARP

NAT
Question 2
TCP establishes a connection with the destination device using which process?
encapsulation

flow control

windowing

three-way handshake
Question 3
Which of the following is not an Application layer protocol?
 
DNS
 
TCP

DHCP

SMTP
Question 4
Which part of a computer’s IP address configuration indicates the portion of the address that specifies the network ID?
IP address

subnet mask

default gateway

MAC address
Question 5
A connection information is handled in IP layer.
 
True
False
Question 6
The order of sending messages is guranteed in IP layer.
True

False
Question 7
A congestion control is performed in TCP protocol.
 
True
False
Question 8
Subnetting can make network communication more efficient.
True

False
Question 9
What protocol the ping command use?
Answer:
ICMP
Question 10
Which one of the followings is NOT an Application Layer protocol?
DNS

DHCP

HTTP

TCP



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