What is the default subnet mask for a class B network?
255.0.0.0
255.255.0.0
255.255.255.0
255.255.192.0
Correct Answer :
B. 255.255.0.0
Related Questions
Data Transmission is not a layer in the OSI model
True.
False.
Which of the following is a media type that is most susceptible to interference?
Shielded twisted pair (STP)
Fiber optics
Unshielded twisted pair (UTP)
Coaxial
--------------- is/are used for error detection.
Parity bit
checksum
both A) and B)
neither A) nor B).
Your network has gotten a single class C address but has 300 computers. How can you connect them to the Internet?
Use IPX.
Implement NAT.
Use DHCP.
Use DNS.
In an autonomous system with n areas, how many areas are connected to the backbone?
1
N
N+1
N-1
Which of the following is the IEEE specification for wireless networks?
802.3
802.5
802.2
802.11b
You're asked to install a Citrix MetaFrame XP server. What protocol will clients use to connect and run graphical terminal emulation to the new server?
ICA
Telnet
RAS
HTTP
Which of the following algorithms are meant for establishing the paths through the network?
Unicast
Broadcast
Multicast
Any cast
Which of the following fields holds the packets of several protocols?
NLPID field
Pad field
UI (0x03) field
Q.922 field
Internet e-mail system based on the ……………………………………………..
FTP
Simple Mail Transfer Protocol (SMTP)
POP
Both SMTP and POP
Internet Research Task Force (IRTF) body looks after ________.
The research projects of TCP/IP suit
Technical related issues
Development of standards like Requests for Comments
Maintenance of Internet
Which is the port used by HTTPS?
123
143
69
443
BGP is …………………………………….routing protocol used to ………………………….routing table.
intrautonomous system, update
Interautonomous system, update
Interautonomous system, create
intrautonomous system, create
Which of the following protocols were designed for terminal emulation to connect dissimilar systems?
Domain Name System
FTP
Telnet
Control Message Protocol
You're asked to install a Citrix MetaFrame XP server. What protocol will clients use to connect and run graphical terminal emulation to the new server?
ICA
Telnet
RAS
HTTP
Which type of BGP message is sent by a system to notify another router of the senders existence?
Keep-alive
Notification
Open
Update
Which class of IP addressing was not brought in much use?
Class A addresses
Class D addresses
Class B addresses
Class C addresses
What is the default subnet mask for a class B network?
255.0.0.0
255.255.0.0
255.255.255.0
255.255.192.0
________allows receiver to inform sender about the successful receiving of all the
segments.
SACK-permitted Option
Window scale option
Selective Acknowledgment (SACK)
Maximum segment size option
------------------- is/ are caused by the random motion of the electrons in a wire and is unavoidable.
Dispersion
Thermal noise
Delay distortion
all of these
Which field in Domain Name System message format specifies the class of query?
Type
Class
Rdlength
Rdata
In Secure Electronic Transaction, the description of the purchase and cost is contained in
________ message.
Authorization
Purchase order
Inquiry
Capture
The generic domain name for air transport industry is ________.
biz
air
aero
fly
What is the maximum length of thick Ethernet cable before a signal booster is needed?
500 feet
500 meters
1000 feet
2 miles
When collection of various computers seems a single coherent system to its client, then it is called
computer network
distributed system
both (a and (b
none of the mentioned
What is the address identified when socket is available at each end of TCP?
"<TCP, IP address, socket number>."
"<TCP, Host address, port address>."
"<TCP, IP address, port number>."
"<TCP, Network address, socket address>."
ADSL uses high-speed Internet service phone lines
True.
False.
Which of the following protocol resolves a host's hardware address for a known IP
address?
InATMARP protocol
ATMARP protocol
InARP protocol
ARP protocol
Which of these is a feature of hubs?
Hubs amplify the incoming signal.
Hubs understand frames, packets or headers
All lines coming into a Hub must operate at a same speed.
all of these
127.0.0.1 address is reserved for internal loopback functions.
True.
False.