Videoconferencing is an example for…………………… communication
Simplex
Half duplex
Full duplex
serial
Correct Answer :
C. Full duplex
Related Questions
DSL stands for ------------------------
data subscriber lines
dual subscriber lines
delay subscriber lines
digital subscriber lines
What is the default port for Telnet?
23
21
25
80
In ________ routing, the tunnel creates a bridge through areas that do not support
multicast traffic.
Internet
MBONE
Border Gateway Protocol
Multicast OSPF
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 have a network card with only one connector, which looks like a place to plug an oversized phone cord. What type of card is it?
token ring
decnet
d. ethernet
fiber optic
Which type of connector is used on 10Base2 networks?
SC
BNC
RJ-45
RJ-11
Which of the following transmission media suffers more from transmission impairment?
coaxial cable
Optical fiber
twisted pair
wave guides
_______ body looks after the protocol identifiers used over Internet.
Transmission Control Protocol
Telnet protocol
Internet Protocol
Network Control Protocol
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
What layer of the OSI protocol reference model does a bridge operate under?
Physical
Data-link
Network
Transport
Which of the following is a simplex protocol?
Multicast Source Discovery Protocol (MSDP)
User datagram protocol(UDP)
Resource Reservation Protocol (RSVP)
Internet Group Management Protocol (IGMP)
Which layer of the OSI model does a switch operate in?
Physical
Data-link
Network
Transport
Identify the topology and network type that uses a central hub with cables connected to workstations.
Physical star topology, Ethernet
Physical bus topology, Ethernet
Physical ring topology, token ring
Physical ring topology, Ethernet
Which of the following use default routes for inter domain routing?
Type 2
Type 4
Type 3
Type 1
To communicate across a TCP/IP network, you must have a DNS server and DNS clients installed.
True.
False.
--------------- is/are used for error detection.
Parity bit
checksum
both A) and B)
neither A) nor B).
Which of the following request in Session Initiation Protocol (SIP) queries the capabilities of
servers?
CANCEL
ACK
OPTIONS
PRACK
Which of the following protocols are considered unreliable or connectionless?
UDP
TCP
FTP
TFTP
Which of the following application uses 1.5 Mbps bandwidth?
High speed internet browsing
Recording for later viewing
Two(2)other TV'S
One(1)high definition TV(HDTV)
What can be used in the place of DNS to resolve host names to IP addresses?
WINS
LMHosts
Hosts
DHCP
What is the distance limitation of Cat5 UTP?
1 km
100 km
100 m
100 foot
Which piece of equipment operates at both the data-link and network layers?
Hub
Bridge
Brouter
Router
In an active mode if any FTP client sends the port command "PORT 192,168,0,1,4,1" then
what will be the interpretation of port field?
1024
1025
1023
227
In FTP, to execute a file transfer, the user begins by _________.
Navigating the directory structure
Connecting to a remote host
Listing files available for transfer.
Defining the transfer mode
You've taken your Windows 2000 laptop to a client's network and plugged it in. Your computer is configured for an IP network over 100BaseT using DHCP. You can't connect, even though the client says that DHCP is working on his 100BaseT network. What should
Use Ipconfig /release to release the old DHCP address.
Use Winipcfg and click Release to release the old DHCP address.
Use Ifconfig to initialize the NIC.
Use Tracert to determine the problem.
You wish to install a 100BaseT network. What type of cabling will you use?
CAT 3 UTP
CAT 5 UTP
Thinnet
Fiber optic
Which cable type is immune to outside interference and crosstalk?
Thinnet
Twisted pair
Fiber optic
Thicknet
What is the distance limitation of Cat5 UTP?
1 km
100 km
100 m
100 foot
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 maximum length of twisted-pair cable before a signal booster is needed? Select all that apply.
25 meters
100 meters
328 feet
1000 feet