Pure ALOHA has a maximum throughput of -----------
16.4 %
18.4 %
7.4 %
1 %
Correct Answer :
B. 18.4 %
Related Questions
Internet Architecture Board (IAB) governs which of the following bodies?
Internet Assigned Number Authority (IANA)
Internet Research Task Force (IRTF)
Internet Engineering Task Force (IETF)
All of the above
How many 64-Kbps channels are used on an ISDN BRI?
1
2
3
4
FDDI operates on 100 Mbps.
True.
False.
Which type of connector is used on 10Base2 networks?
SC
BNC
RJ-45
RJ-11
What is 10baseT?
specification for twisted-pair cable
specification for cable terminators
10 megawatt transceiver
10 Mhz analog transfers
A node, which is more powerful, and can handle local information processing or graphics processing is called a------------------.
Workstation
Server
Network Operating System
Peer system
Thick Ethernet cable uses what type of connector? Select all that apply.
RJ-45
AUI
DB-15
BNC
DSL stands for ------------------------
data subscriber lines
dual subscriber lines
delay subscriber lines
digital subscriber lines
The Hamming Distance for the codes generated using either even or odd parity will be------------------
2
4
1
0
The general form of the SMTP destination address is ________________.
user% remote-host@gateway-host
user@host
local-part@domain-name
None of the above
Which is the port used by HTTPS?
123
143
69
443
Which of the following is the IEEE specification for wireless networks?
802.3
802.5
802.2
802.11b
To communicate across a TCP/IP network, you must have a DNS server and DNS clients installed.
True.
False.
Pure ALOHA has a maximum throughput of -----------
16.4 %
18.4 %
7.4 %
1 %
Which function is not supported by E-mail?
authentication
composition
Disposition
Displaying
Videoconferencing is an example for…………………… communication
Simplex
Half duplex
Full duplex
serial
In distance vector routing an active router sends out information ………………………….
Only when there is a change in its table
Only when a new host is added
At regularly scheduled intervals
Only when a new network is added
Which of the following algorithms are easy to implement and debug?
Hybrid algorithm
Path vector algorithm
Link state algorithm
Distance vector algorithms
Telnet protocol uses ___________ representation for the function Synchronize.
SYC
SYNCH
SNZ
SY
Which of the following address supports 254 hosts on each of 2 million networks?
Class D addresses
Class A addresses
Class C addresses
Class B addresses
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.
Which of the following network topologies has the highest level of redundancy?
Bus
Star
Star
Mesh
What is the pattern of a preamble?
11110000
11111111
00000000
none of these
The worldwide Internet is a well-known example of ------------------.
PAN
Subnet
Intra-Network
Inter-network
What are the subnet mask in dotted decimal notation for /20 networks?
255.255.252.0
255.255.255.0
255.255.254.0
255.255.240.0
A modem is a card within a PC that converts the …………... the computer produces to ………………….. that can pass over telephone system.
Data, signal
Analog signal, digital signal
Digital signal, analog signal
signal, data
Which of the following defines a family of standards for 100 Mbps fiber optic LANs that
provides the physical layer and media access control sub-layer of the data link layer, as
defined by the ISO/OSI Model?
Ethernet
IEEE 802
Fiber Distributed Data Interface (FDDI)
Point-to-Point Protocol (PPP)
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
127.0.0.1 address is reserved for internal loopback functions.
True.
False.
Router B receives an update from router A that indicates Net1 is two hops away. The next update from A says Net1 is five hops away. What value is entered in B's routing table for Net1? Assume the basic RIP is being used.
6
7
2
3