1. What are 10Base2, 10Base5 and
10BaseT Ethernet LANs
10Base2—An Ethernet term meaning a maximum transfer rate of 10
Megabits per second that uses baseband
signaling, with a contiguous cable segment length of 100
meters and a maximum of 2 segments.
10Base5—An Ethernet term meaning a maximum transfer rate of 10
Megabits per second that uses baseband
signaling, with 5 continuous segments not exceeding 100
meters per segment.
10BaseT—An Ethernet term meaning a maximum transfer rate of 10
Megabits per second that uses baseband
signaling and twisted pair cabling.
2. Explain the difference between an unspecified passive open
and a fully specified passive open
An unspecified passive open has the server waiting for a
connection request from a client. A fully specified passive
open has the server waiting for a connection from a
specific client.
3. Explain the function of
Transmission Control Block
A TCB is a complex data structure that contains a
considerable amount of information about each connection.
4. Explain a Management
Information Base (MIB)
A Management Information Base is part of every SNMP-managed
device. Each SNMP agent has the MIB database that
contains information about the device's status, its
performance, connections, and configuration. The MIB is queried
by SNMP.
5. Explain anonymous FTP and
why would you use it
Anonymous FTP enables users to connect to a host without
using a valid login and password. Usually, anonymous FTP
uses a login called anonymous or guest, with the
password usually requesting the user's ID for tracking purposes
only. Anonymous FTP is used to enable a large number
of users to access files on the host without having
to go to the trouble of setting up logins for them all.
Anonymous FTP systems usually have strict controls over the
areas
an anonymous user can access.
6. Explain a pseudo tty
A pseudo tty or false terminal enables external machines to
connect through Telnet or rlogin. Without a pseudo tty, no
connection can take place.
7. Explain REX
What advantage does REX offer other similar utilities
8. What does the Mount
protocol do
The Mount protocol returns a file handle and the name of the
file system in which a requested file resides. The message
is sent to the client from the server after reception
of a client's request.
9. Explain External Data
Representation
External Data Representation is a method of encoding data
within an RPC message, used to ensure that the data is not
system-dependent.
10. Explain the Network Time Protocol ?
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