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1IPv6 is expected to provide all of the following improvements over traditional IP except:
Dynamic configuration of routers
New extensions allowing for data integrity checks and encryption
An increase in address space from 4 numbers (32-bits) to 16 numbers (128-bits)
A new type of address, called an anycast, which allows a frame to be directed to specific host
computer groups rather than the traditional broadcast to all network hosts.
More efficient routing of packets from source to destination host.
2- Which of the following defines the authoritative name server for a given domain?
NS record
SN record
Record
A record
3- The port number for SMTP is ____.
25
23
21
80
Question 4
Which of the following is best suited for video conferencing over the network?
packet switching
circuit switching
Ethernet
Token Ring
Question 5
Which of the following protocols is responsible for providing information on where data should
be delivered?
TCP
IP
HTTP
UDP
Question 6
URLs (Web addresses) are converted to IP addresses by the ________ server.
TCP/IP
DNS
ICANN
DHCP
7- If all users in a multinational organization can send and receive mail to and from colleagues,
except for those in the Marketing department, what is probably the source of the problem?
the company's SMTP server
the company's POP server
the Marketing department's SMTP
server
the Marketing department's POP server
Question 8
If all users in a multinational organization can send and receive mail to and from colleagues, but
the Marketing department, can not retrieve their email, what is probably the source of the
problem?
the company's SMTP server
the company's POP server
the Marketing department's SMTP
server
the Marketing department's POP server
Question 9
All of the statements concerning ICMP are true, except
this protocol sits between IP and TCP
is used by TCP/P to translate IP addresses into MAC addresses
does not control errors; it simply reports that an error occurred
it can specify that a network is not reachable or that packets were not
delivered
is used by many diagnostic utilities like PING and TRACERT
Question 10
At what layer of the OSI Model does SNMP operate?
Application
Session
Transport
Data Link
none of the
above
Question 11
What is the function of the Acknowledgment field in the TCP datagram?
It confirms receipt of the data in a return message to the sender.
It confirms the size of the datagram to the recipient, proving that the datagram was not
corrupted en route.
It confirms the sequence of the datagrams to the recipient.
It confirms the length of the datagram's header in a return message to the sender.
Question 12
Which of the following DNS utilities resolves a hostname into an IP address?
dig
host
nslookup
rndc
Question 13
Which of the following is part of the DNS domain tree?
Option
Include
Zone
Controls
Question 14
To know if a connection to a Web site is secured, look for ____ in the browser address box and a
lock icon at the bottom of the browser window.
ssl
tls
cert
https
Question 15
Which does not rely on SMTP?
POP2
HTTP
IMAP
POP3
Question 16
On a Class A network in the IPv4 addressing scheme, all nodes have which octet(s) in
common?
the first only
the first and second
the second only
the second and
third
Question 17
What Transport layer protocol does HTTP rely on?
TCP
IP
UDP
ICMP
Question 18
Which of the following resource record types defines the mail exchanger?
CNAME
MX
SOA
PTR
Question 19
In general, the problem that reverse DNS seeks to avoid is called:
Spoofing
Gated
Cost
Named
Question 20
The DNS component that contains databases of names and their associated IP addresses
is/are _____.
resolvers
name servers
name space
Both A and
B.
Question 21
Given the following TCP/IP layout
●
●
●
●
IP 202.34.55.6 SM 255.255.255.128
IP XXX.XXX.XXX.XXX SM XXX.XXX.XXX
╔═════════════════════════╗
══════════════════════════════════════════════════════╣
202.34.55.18 /225.225.225.128 ║
IP 202.34.55.200 SM 255.255.255.128
IP 202.34.55.201 SM 255.255.255.128║
║
═════════════════════════════════════════════════════╣
202.34.55.190 225.255.255.128 ║
●
╚═════════════════════════╝
Which of the following would be a legal IP address and subnet mask for XXX.XXX.XXX.XX
202.34.55.19 255.255.255.0
202.34.55.6 255.255.255.128
202.34.55.199
255.255.255.128
202.34.55.13 255.255.255.128
204.34.55.13 255.255.255.0
Question 22
How many valid host IP addresses are available with a network address of 218.41.99.24 and a
subnet mask of 255.255.255.240
2
6
14
30
Question 23
How many valid host IP addresses are available with a network address of 218.41.99.24 and a
subnet mask of 255.255.255.248
2
6
14
30
Question 24
Which of the following provides a secure channel between two devices at the Network Layer
(Layer 3)?
SSL
IPSec
SNMP
NTP
Question 25
Which of the following is a valid subnet mask?
11111111 . 11111111 . 00001111 .
00000000
11111111 . 11111110 . 11111111 .
00000000
11111111 . 11111111 . 11100000 .
00000000
11111110 . 11111111 . 00001001 .
00000000
Question 26
What is the broadcast IP for 196.23.250.30/27?
196.23.250.3
2
196.23.250.3
3
196.23.250.6
3
196.23.250.6
4
Question 27
Which of the following is NOT considered a private address as per RFC 1918?
63.254.18.7
10.10.10.205
172.30.8. 243
192.168.128.12
8
Question 28
What is the binary equivalent of the following IP address: 172.16.1.0?
10101100 . 00010000 . 00000010 .
00000000
10101100 . 00010000 . 00000011 .
00000000
10101100 . 00010000 . 00000001 .
00000000
10101100 . 00010000 . 00000101 .
00000000
Question 29
What kind of PDU (Protocol Data Unit) is used at the Transport Link layer of the OSI model?
Segment
Packet/Datagra
m
Bit
Frame
Question 30
How many subnets can you have with a subnet mask of 255.255.240 on a Class B network?
8
14
15
30
Question 31
Which protocol uses TCP port 22?
SSL
SSH
SNMP
NTP
Question 32
An IP address which is permanently assigned to a workstation is called a(n) ____ IP address.
static
permanent
fixed
specified
Question 33
The binary process used by your computer to find the network ID is called ____.
Subnetting
Supernetting
Multicasting
ANDing
Question 34
If you need at least 12 subnetworks with a Class C network and you want to have as many
hosts as possible on each network, what subnet mask would you use?
255.255.255.25
2
255.255.255.24
0
255.255.255.24
8
255.255.255.22
4
Question 35
An IP address which is assigned only for the current session is called a(n) ____ IP address.
fluctuating
temporary
private
dynamic
uestion 36
The CDIR notation or prefix notation can be determined by
the value of the first octet of the IP address
counting the number of 1 bits in the IP address
counting the number of 1 bits in the subnet
mask
the class of the IP address
Question 37
Which of the following is NOT considered a private address as per RFC 1918?
10.254.18.7
172.30.14.5
172.79.8. 243
192.168.163.7
1
Question 38
Which of the following network classes does not define public IP address space?
Class A
Class B
Class C
Class D
Question 39
The number of subnets on a network can be calculated using the formula ____.
n
2 *2
n
2 -2
n
2 -4
n
2 -20
Question 40
According to the figure above, what is the new subnet mask of the supernetted network?
255.255.255.25
5
255.255.255.0
255.255.254.0
255.255.0.0
Question 41
Given the network address 1921.131.10.0 and the subnet mask 255.255.255.0, what is the total
number of networks and total numbers of hosts per network?
1 network / 255 hosts
1 network /254 hosts
2 networks / 126
hosts
6 networks / 30 hosts
Question 42
TCP uses a socket as the basic unit of data transfer.
True
False
Question 43
Which is the most commonly used protocol?
SNA
TCP/IP
NetBIOS
IPX/SPX
Question 44
You have a Microsoft network with all clients using Windows 9x. You want to organize your
TCP/IP configurations to ensure that they can be centrally managed. What application would
you use to do this?
DNS
WINS
IPCONFIG
DHCP
Either A or B
Question 45
Which of the following statements is correct?
IPX is a connection-based protocol
IPX is a connectionless protocol
IPX is a part of the TCP/IP protocol
suite
IPX is based on NETBEUI
Question 46
A connection-oriented protocol requires a(n):
User Datagram
Protocol.
ISP.
UDP connection.
three-way handshake.
Question 47
All of the following statements, concerning domain names, are true EXCEPT:
The portion of the domain name after the dot (.) is the top-level domain
name.
The top-level domains are within the second-level domains.
Domain names are user-friendly names that take the place of IP addresses.
Each second-level domain must be unique within that particular domain.
Question 48
TCP and IP are the standard transport and network layer protocols of the Internet.
True
False
Question 49
Which of the following statements concerning packet switching is FALSE?
Packet switching is an efficient communications methodology.
Packet switching does not require that a dedicated communications circuit be maintained.
If Internet nodes are disabled or destroyed, data can travel an alternate route to its
destination.
All packets must take the same route to their destination.
Question 50
Which of the TCP/IP protocols are connection-based?
TCP
HTTP
IP
ICMP
Question 51
If hosts on a network do not use the same network protocol, what problem will this most likely
cause?
The network will be slow because the hosts will translate each frame as they
receive
The host will be unable to communicate with each other
The host computer will not boot
You will see some messages and files, but they will appear in a different language.
Question 52
Given the following TCP/IP layout
●
●
●
●
IP 202.34.55.6 SM 255.255.255.128
IP XXX.XXX.XXX.XXX SM XXX.XXX.XXX
╔═════════════════════════╗
══════════════════════════════════════════════════════╣
202.34.55.18 /225.225.225.128 ║
IP 202.34.55.200 SM 255.255.255.128
IP 202.34.55.201 SM 255.255.255.128║
║
═════════════════════════════════════════════════════╣
202.34.55.190 225.255.255.128 ║
●
╚═════════════════════════╝
Which of the following would be a legal IP address and subnet mask for XXX.XXX.XXX.XX
202.34.55.19 255.255.255.0
202.34.55.6 255.255.255.128
202.34.55.199
255.255.255.128
202.34.55.13 255.255.255.128
204.34.55.13 255.255.255.0
Question 53
On a UNIX-based computer, a host file is called hosts and resides in the ____ directory.
/boot
/bin
/sbin
/etc
Question 54
Assuming that your IP address is 192.56.34.188 and a remote site IP address is 62.44.56.119
and given the following scenario: The green status light of the network interface card is on.
PING 127.0.0.1 does successfully execute. You can successfully ping 62.44.56.119, but you
can not ping another internal network. The most likely cause of this problem is?
The gateway IP is incorrect.
The DNS server IP is incorrect.
TCP/IP is not properly bound to the network
interface.
The router's routing table may be incorrect.
None of the above.
Question 55
Assuming that your IP address is 192.56.34.188 and a remote site IP address is 62.44.56.119
and given the following scenario: The green status light of the network interface card is on.
PING 127.0.0.1 does successfully execute. You can successfully ping 192.56.34.202, but you
cannot ping 62.44.56.119. The most likely cause of this problem is?
The gateway IP is incorrect.
The DNS server IP is incorrect.
TCP/IP is not properly bound to the network
interface.
The router's routing table may be incorrect.
None of the above.
Question 56
When a computer has a(n) ________ IP address, it means that the IP address never changes.
static.
arbitrary
dynamic
assigned
Question 57
URLs (Web addresses) are converted to IP addresses by the ________ server.
TCP/IP
DNS
ICANN
DHCP
Question 58
Which of the following standard TCP/IP settings must be assigned before you can contact hosts
on other networks?
PING
Default path
Default Gateway
Domain Name
Services
Question 59
The ________ protocol in the TCP/IP suite is responsible for transmission of e-mail messages
across the Internet.
UDP.
Telnet
.
SMTP
FTP
Question 60
A socket is a(n) ____.
combination of an IP address and a service port number
standard network cable connector
node that connects two or more networks or network
segments
TCP connection with a unique integer number
Question 61
At a minimum, all packets must contain:
packet size, reassembling instructions, and data.
a recipient's address, reassembling instructions, and data.
a recipient's address, reassembling instructions, and packet
size.
packet type, packet size, and data.
Question 62
Which of the following devices makes use of ARP tables?
hub
bridge
router
NIC
Question 63
A socket allows two computers to establish what kind of circuit?
virtual
closed
transitory
application
Question 64
Assuming that your IP address is 192.56.34.188 and a remote site IP address is 62.44.56.119
and given the following scenario: The green status light of the network interface card is on.
PING 127.0.0.1 does not successfully execute. The most likely cause of the problem is?
The gateway IP is incorrect.
The DNS server IP is incorrect.
TCP/IP is not properly bound to the network
interface.
The router's routing table may be incorrect.
None of the above.
Question 65
To what type of network does the default subnet mask 255.255.255.0 belong?
Class A
Class B
Class C
Class D
Question 66
In which of the following situations would an IP default gateway be necessary (assuming default
subnet masks are in use)?
A printer with an IP address of 159.45.22.144 receives a print job from a server with an IP
address of 159.45.22.39.
A client with an IP address of 144.92.104.82 sends an e-mail message to a client with an IP
address of 144.92.39.82.
A client with an IP address of 144.92.104.56 downloads a Web page from an HTTP server with
an IP address of 10.12.10.13.
A client with an IP address of 144.92.104.56 retrieves a file from a Windows 2000 server with an
IP address of 144.92.104.20
Question 67
Each of the four parts of an IP address are referred to as a(n):
octet.
dotted decimal
number.
second-level domain.
IP set.
Question 68
Which protocol in the TCP/IP suite is responsible for addressing?
UDP
TCP
ARP
IP
Question 69
Assuming that your IP address is 192.56.34.188 and a remote site IP address is 62.44.56.119
and given the following scenario: The green status light of the network interface card is on.
PING 127.0.0.1 does successfully execute. You can successfully ping 62.44.56.119, but you
can not successfully ping the domain name of 62.44.56.119. The most likely cause of this
problem is?
The gateway IP is incorrect.
The DNS server IP is incorrect.
TCP/IP is not properly bound to the network
interface.
The router's routing table may be incorrect.
None of the above.
Question 70
The ________ protocol, part of the TCP/IP protocol suite, enables users to share files on their
local computers with remote computers.
SMTP
FTP
Telnet
HTTP
Question 71
Which of the following subprotocols allows TCP/IP to be routable?
TCP
IP
UDP
ICMP
Question 72
The OSI model has 7 layers. How many layers does the TCP/IP architectural model have?
3
7
5
4
5
Question 73
Assuming that your IP address is 192.56.34.188 and a remote site IP address is 62.44.56.119
and given the following scenario: The green status light of the network interface card is on. The
PING 127.0.0.1 does successfully execute. You can successfully ping 62.44.56.119. You can
successfully ping the domain name of 62.44.56.119, but your browser can not open up a web
pages at 62.44.56.119. The most likely cause of this problem is?
The gateway IP is incorrect.
The DNS server IP is incorrect.
The /etc/hosts file is incorrect.
The router's routing table may be
incorrect.
None of the above.
Question 74
On a Class A network in the IPv4 addressing scheme, all nodes have which octet(s) in
common?
the first only
the first and second
the second only
the second and
third
Question 75
Assuming that your IP address is 192.56.34.188 and a remote site IP address is 62.44.56.119
and given the following scenario: The green status light of the network interface card is on.
PING 127.0.0.1 does successfully execute, but you cannot ping localhost. The most likely cause
of this problem is?
The gateway IP is incorrect.
The DNS server IP is incorrect.
The /etc/hosts file is incorrect.
The router's routing table may be
incorrect.
None of the above.
Question 76
In TCP/IP, the protocol that guarantees packet delivery is IP.
True
False
Question 77
What is the single greatest disadvantage to using packet switching?
It is expensive
It is not highly scalable.
Its standards are not stable.
It is ill suited to time-sensitive
transmissions.
Question 78
What do network hosts do to improve the speed of ARP responses?
hold ARP tables in cache
keep ARP numbers in their TCP/IP configuration
reassign MAC addresses if a response is not received quickly
enough
issue multiple broadcasts to ensure prompt responses
Question 79
The difference between a connection-based protocol and a connectionless protocol is?
A connection-based protocol requires that a host address be always provided, while a
connectionless protocol does not.
A connection-based protocol requires that all packets are delivered by the same route, while a
connectionless protocol does not.
A connection-based protocol guarantees all packets will be delivered to the destination, while a
connectionless protocol does not.
A connection-based protocol delivers messages between hosts, while a connectionless protocol
delivers messages between users.
Question 80
IPv6 is expected to provide all of the following improvements over traditional IP except:
Dynamic configuration of routers
New extensions allowing for data integrity checks and encryption
An increase in address space from 4 numbers (32-bits) to 16 numbers (128-bits)
A new type of address, called an anycast, which allows a frame to be directed to specific host
computer groups rather than the traditional broadcast to all network hosts.
More efficient routing of packets from source to destination host.
Question 81
Which of the following protocols are connectionless?
TCP
IP
UDP
HTTP
both b and c