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. What is 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.
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.
A TCB is a complex data structure that contains a considerable amount of information about each connection.
4. What is 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.
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. What is 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.
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. What is 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.
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. 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.
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.
8. What is 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.
External Data Representation is a method of encoding data within an RPC message, used to ensure that the data is not system-dependent.
9. BOOTP helps a
diskless workstation boot. How does it get a message to the network looking for
its IP address and the location of its operating system?
Boot files BOOTP sends a UDP message with a subnetwork broadcast address and waits for a reply from a server that gives it the IP address. The same message might contain the name of the machine that has the boot files on it. If the boot image location is not specified, the workstation sends another UDP message to query the server.
10. What is a DNS resource record?
A resource record is an entry in a name server's database. There are several types of resource records used, including name-to-address resolution information. Resource records are maintained as ASCII files.
Boot files BOOTP sends a UDP message with a subnetwork broadcast address and waits for a reply from a server that gives it the IP address. The same message might contain the name of the machine that has the boot files on it. If the boot image location is not specified, the workstation sends another UDP message to query the server.
10. What is a DNS resource record?
A resource record is an entry in a name server's database. There are several types of resource records used, including name-to-address resolution information. Resource records are maintained as ASCII files.
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