Which of these is an example for unguided transmission?
coaxial cable
optical fibers
wireless
twisted pairs
Correct Answer :
C. wireless
Related Questions
25 is used by SMTP
True.
False.
You are browsing www.microsoft.com on a machine named host.contoso.org.. What is the order of domain name resolution?
Contoso.com, contoso.org, microsoft.com, com
Contoso.com, org, microsoft.org, org
Contoso.org, org, root [.], com, microsoft.com
Microsoft.com, com, org, contoso.org
________is a multicast extension to OSPF Version 2.
Multicast Source Discovery Protocol (MSDP)
Distance Vector Multicast Routing Protocol (DVMRP)
Multicast OSPF (MOSPF)
Internet Group Management Protocol (IGMP)
What is the maximum length of thick Ethernet cable before a signal booster is needed?
500 feet
500 meters
1000 feet
2 miles
________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
Destination physical address in ARP request is a ………………………….address.
Unicast
Broadcast
Multicast
Anycast
At which layer of the OSI model do FTP, SMTP, POP3, and HTTP function?
Physical
Network
Transport
Application
What is the maximum distance of single-mode fiber (SMF)?
300 meters
500 meters
2km
850 meters
DSL stands for ------------------------
data subscriber lines
dual subscriber lines
delay subscriber lines
digital subscriber lines
FDDI operates on 100 Mbps.
True.
False.
In 1996, 36.44% of _________ addresses were brought in use.
Class A
Class D
Class B
Class C
Which of the following can provide a backbone network of 600 meters in length without using repeaters?
10BaseT
100BaseT
10Base5
100BaseFX
Pure ALOHA has a maximum throughput of -----------
16.4 %
18.4 %
7.4 %
1 %
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
AppleTalk protocol configures hosts in zones on the network.
True.
False.
Which of the following can be used to transfer files from a Unix server?
FTP
Telnet
IPX
Netstat
Which of the following algorithms are easy to implement and debug?
Hybrid algorithm
Path vector algorithm
Link state algorithm
Distance vector algorithms
Which class of IP addressing was not brought in much use?
Class A addresses
Class D addresses
Class B addresses
Class C addresses
The key concern in the design of transmission system is -------------- and ---------------
data rate ,distance
speed, accuracy
accuracy, simplicity
distance , cost
In an authentication using symmetric keys, if 10 people need to communicate, we need _______ keys.
90
10
20
45
This mapping of name to IP address is done by …………………………….
Address resolution protocol
Domain name server
reverse address resolution protocol
Ethernet
Which of the following is required to communicate between two computers?
Communications software
Protocol
Communication hardware
All of the above including access to transmission medium
The idea of sharing one network address among the multiple physical networks can be done using the following technique:
Supernetting
Subnetting
Transparent router
Both b & c
Your Web server is also configured as an FTP server. What part of the data packet will tell the server which application the data is meant for?
Port
IP address
MAC address
Frame header
What is used to boost a digital signal?
amplifier
digi-booster
multiplexer
booster
Following are the advantages of tree topology
i) Point-to-point wiring for individual segments.
ii) Supported by several hardware and software venders.
iii) Easy to install and wire
i) only
i) and ii) only
iii) only
i) ,ii) and iii)
You are browsing www.microsoft.com on a machine named host.contoso.org.. What is the order of domain name resolution?
Contoso.com, contoso.org, microsoft.com, com
Contoso.com, org, microsoft.org, org
Contoso.org, org, root [.], com, microsoft.com
Microsoft.com, com, org, contoso.org
Class C network address class supports 65,534 hosts.
True.
False.
Which of the following protocols is described in RFC 793?
Address Resolution Protocol (ARP)
Transmission Control Protocol (TCP)
Bootstrap Protocol (BOOTP)
User Datagram Protocol (UDP)
T1 makes up 24 channels.
True.
False.