Which layer of the OSI model does a switch operate in?
Physical
Data-link
Network
Transport
Correct Answer :
B. Data-link
Related Questions
What is used to boost a digital signal?
amplifier
digi-booster
multiplexer
booster
Which cable type is immune to outside interference and crosstalk?
Thinnet
Twisted pair
Fiber optic
Thicknet
25 is used by SMTP
True.
False.
Which of the following can translate between dissimilar protocols and network types?
Hub
Repeater
Switch
Gateway
Which of the following algorithms are meant for establishing the paths through the network?
Unicast
Broadcast
Multicast
Any cast
In 1996, 36.44% of _________ addresses were brought in use.
Class A
Class D
Class B
Class C
80 is the well-known port number for the HTTP service.
True.
False.
FDDI operates on 100 Mbps.
True.
False.
Which of the following can be used to transfer files from a Unix server?
FTP
Telnet
IPX
Netstat
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.
Which class does the IP address 202.119.22.31 belong to?
Class A
Class B
Class C
APIPA
Videoconferencing is an example for…………………… communication
Simplex
Half duplex
Full duplex
serial
What can be used in the place of DNS to resolve host names to IP addresses?
WINS
LMHosts
Hosts
DHCP
A time exceeded message is generated if ………………………………………………….
The round trip time between hosts is close to zero.
The Time-to Live field has a zero value.
Fragments of a message do not arrive within a set time
both b & c
In the IP address 129.2.8.9, what does 129.2 specify?
Protocol address
Router address
Host number
Network number
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 protocol resolves a host's hardware address for a known IP
address?
InATMARP protocol
ATMARP protocol
InARP protocol
ARP protocol
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>."
Thick Ethernet cable uses what type of connector? Select all that apply.
RJ-45
AUI
DB-15
BNC
T1 makes up 24 channels.
True.
False.
BGP is …………………………………….routing protocol used to ………………………….routing table.
intrautonomous system, update
Interautonomous system, update
Interautonomous system, create
intrautonomous system, create
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
In ________ routing, the tunnel creates a bridge through areas that do not support
multicast traffic.
Internet
MBONE
Border Gateway Protocol
Multicast OSPF
________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)
Which type of connector is used on 10Base2 networks?
SC
BNC
RJ-45
RJ-11
The generic domain name for air transport industry is ________.
biz
air
aero
fly
…………………………..combines characteristics of linear bus and star topologies.
Ring topology
A hybrid topology
A tree topology
mesh topology
Which of the following transmission media suffers more from transmission impairment?
coaxial cable
Optical fiber
twisted pair
wave guides
Strings enclosed in _______ quotation marks indicate single tokens.
Alphanumeric
Morse code
ASCII
Binary
What is the default subnet mask for a class A network?
255.0.0.0
255.224.0.0
255.255.0.0
255.255.255.0