Frame Relay falls into which category of WAN connections?
Leased line
Packet switched
Circuit switched
Cell switched
An administrator pings the IP address 127.0.0.1 from a command prompt on a server. If he receives reply messages, what does this indicate?
The server has connected successfully to a device using IP
TCP and UDP are working properly
The server has connectivity with local devices
The server can reach the Internet
Where Cisco IOS images are stored?
RAM
ROM
Flash
NVRAM
Which protocol has the most rapid route convergence?
OSPF
RIPv1
EIGRP
RIPv2
What protocol uses cells?
ATM
Frame Relay
PPP
X.25
Which protocol is protocol-independent?
ATM
Frame Relay
MPLS
X.25
What command you can use in order to enter global configuration?
Configure terminal
Configure global
Configure
Configure running-config
What command clock rate 56000 does?
To Set delay to 56000
To Set time to 12.30.50
To Set interface bandwidth to 56000 bit/s
To Set delay to 56000 ms
Which protocol is a hybrid one?
RIP
OSPF
IGRP
EIGRP
A receiving host has failed to receive all of the segments that it should acknowledge. What can the host do to improve the reliability of this communication session?
Send a different source port number.
Restart the virtual circuit.
Decrease the sequence number.
Decrease the window size.
Which fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
Source and destination network address
Source and destination MAC address and source and destination network address
Source and destination network address andFCS field
Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Switch
NIC
Hub and Repeater
RJ45 transceiver
Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
3, 3, 1, 7
3, 2, 1, none (в нете)
3, 2, 1, 7 (по базе)
2, 3, 1, 7
Why does the data communication industry use the layered OSI reference model?
It enables equipment from different vendors to use the same electronic components, thus saving research and development funds.
It supports the evolution of multiple competing standards and thus provides business opportunities for equipment manufacturers.
It encourages industry standardization by defining what functions occur at each layerof the model.
It provides a framework by which changes in functionality in one layer require changes
in other layers.
What are one purpose for segmentation with a bridge?
To add more broadcast domains
To create more collision domains
To add less bandwidth for users
To allow more broadcasts for users