How many 64-Kbps channels are used on an ISDN BRI?
1
2
3
4
Correct Answer :
B. 2
Related Questions
In Secure Electronic Transaction, the description of the purchase and cost is contained in
________ message.
Authorization
Purchase order
Inquiry
Capture
80 is the well-known port number for the HTTP service.
True.
False.
Which of the following can provide a backbone network of 600 meters in length without using repeaters?
10BaseT
100BaseT
10Base5
100BaseFX
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
How many layers are there in the OSI model?
4
5
6
7
802.5 project standard defines Token Ring.
True.
False
How many table entries are supported by global routing table in CIDR?
90,000
80,000
70,000
60,000
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 is the port used by POP3?
69
110
143
443
The Hamming Distance for the codes generated using either even or odd parity will be------------------
2
4
1
0
Which of the following transmission media suffers more from transmission impairment?
coaxial cable
Optical fiber
twisted pair
wave guides
………………….is a technique of conversion between the representation of digital data in user equipment and the corresponding signals transmitted over a communications channel.
Line coding
Demodulation
Modulation
Segmentation
FDDI operates on 100 Mbps.
True.
False.
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
A network's Internet connection uses a 128-Kbps Basic Rate Interface (BRI). What type of connection is this?
DSL
Cable modem
ISDN
T1
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
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.
What is the distance limitation of Cat5 UTP?
1 km
100 km
100 m
100 foot
In an authentication using symmetric keys, if 10 people need to communicate, we need _______ keys.
90
10
20
45
Which is the port used by HTTPS?
123
143
69
443
Pure ALOHA has a maximum throughput of -----------
16.4 %
18.4 %
7.4 %
1 %
--------------- is/are used for error detection.
Parity bit
checksum
both A) and B)
neither A) nor B).
Which of the following is defined in RFC 4366?
Secure File Trasfer Protocol (SFTP)
Trivial File Transfer Protocol (TFTP)
File Transfer Protocol (FTP)
Transport Layer Security (TLS)
What can be used in the place of DNS to resolve host names to IP addresses?
WINS
LMHosts
Hosts
DHCP
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 type of connector is used on 10Base2 networks?
SC
BNC
RJ-45
RJ-11
Which of the following SIP request terminates a call?
ACK
BYE
INVITE
CANCEL
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
Which piece of equipment operates at both the data-link and network layers?
Hub
Bridge
Brouter
Router