Chapter 17

Question 1

Is a great to check out the inbound and outbound TCP/IP connections on your machine. You can also use it to view packet statistics like how many packets have been sent and received, the number of errors. p647

Answer 1

netstat Utility

Question 2

UDP is not a connection-oriented protocol and, therefore, has no connection state.T/F p650

Answer 2

True

Question 3

What does the -e Switch do? p651

Answer 3

The -e switch displays a summary of all the packets that have been sent over the Network Interface Card (NIC) as of that instant.

Question 4

What does the -a Switch do? p650

Answer 4

When you use the –a switch, the netstat utility displays all TCP/IP connections and all UDP connections.

Question 5

What is Unicast Packets. p651

Answer 5

The number of packets sent from or received at this computer. To register in one of these columns, the packet must be addressed directly from one computer to another, and the computer’s address must be in either the source or destination address section of the packet.

Question 6

What is Non-unicast Packets.p651

Answer 6

The number of non-unicast packets should be smaller than the number of unicast packets. If the number of non-unicast packets is as high or higher than that of unicast packets, too many broadcast packets are being sent over your network.

Question 7

T he number of packets that were discarded by the NIC during either transmission or reception because they weren’t assembled correctly. p651

Answer 7

Discards

Question 8

The number of errors that occurred during transmission or reception. (These numbers may indicate problems with the network card.) p651

Answer 8

Errors

Question 9

What is Unknown Protocols. p651

Answer 9

T he number of received packets that the Windows networking stack couldn’t interpret. This statistic only shows up in the Received column because if the computer sent them, they wouldn’t be unknown,

Question 10

What does -r Switch do? p652

Answer 10

You use the –r switch to display the current route table for a workstation so that you can see exactly how TCP/IP information is being routed. This will give you the same output as the route print command.

Question 11

What does -s Switch do? p652

Answer 11

Using the –s switch displays a variety of TCP, UDP, IP, and ICMP protocol statistics. But be warned—the output you’ll get is really long, which may or may not be okay for you.

Question 12

What does the -p Switch do? p652

Answer 12

Like the –n switch, the –p switch is a modifier that’s usually used with the –s switch to specify which protocol statistics to list in the output (IP, TCP, UDP, or ICMP).

Question 13

What does the -n Switch do? p654

Answer 13

when you use the –n switch, the output always displays network addresses instead of their associated network names. Following is output from the netstat command used with the netstat -n command.

Question 14

To display a list of all the commands you can use at the ftp command prompt, type ____ or ___ and press Enter. p656

Answer 14

Help or ?

Question 15

What are some of the FTP commands? p656

Answer 15

delete 
send
open
help
prompt
status
trace

Question 16

Third-party applications are available that provide a GUI interface for FTP, which is easier than using a command line. T/F p656

Answer 16

True

Question 17

After you navigate to the directory and find the file you want to download, it’s time to set the parameters for the type of file. Files come in two types: p658

Answer 17

ASCII, which contains text

Binary, which is all other files

Question 18

What are the common FTP navigation commands? p659

Answer 18

Ls,Cd,Pwd and Lcd

Question 19

What is Ls? p659

Answer 19

Short for list. Displays a directory listing. Very similar to the DIR command in MS-DOS.

Question 20

What is Cd?

Answer 20

Short for change directory. Works almost identically to the MS-DOS CD command. Use it to change to a different directory and navigate the server’s directory structure.

Question 21

What is Pwd?

Answer 21

Short for print working directory. Displays the current directory on the server. Useful if you forget where you are when changing to several locations on the server.

Question 22

What is Lcd?

Answer 22

Short for local change directory. Displays and changes the current directory on the local machine. Useful when you are downloading a file and aren’t in the directory where you want to put the file.

Question 23

You can download multiple files by using the mget command. Simply type mget, a space, and then something known as a __________that specifies the files you want to get. p659

Answer 23

wildcard

Question 24

To upload a file, log in and then follow these steps: p660

Answer 24

1. At the ftp command prompt, type lcd to navigate to the directory on the local machine where the file resides.
2. Type cd to navigate to the destination directory.
3. Set the file type to ASCII or binary.
4. Use the put command to upload the file.