CompTIA Network+ N10-008 CH8 - Course Quiz
A computer can maintain multiple simultaneous connections to different servers or services using unique port numbers and IP sessions. This is a core function of modern networking.
At any given point, your computer can only be connected to one server at a time?
True
False
False
Key Terms
At any given point, your computer can only be connected to one server at a time?
True
False
False
Every serving application has a Listening Port?
True
False
True
Which TCP port does the old active File Transfer Protocol (FTP) use by default?
20 and 21
80 and 81
25 and 110
22 and 23
20 and 21
Which switch is used with the Windows netstat utility to show the Process ID?
p
b
n
o
-o
What TCP/IP application uses Port 80?
Web Server
Telnet
FTP
HTTPS
Web Server
Which Protocol enables you to administer a server remotely and communicate with other Servers on your Network?
Telnet
SMTP
HTTPS
FTP
Telnet
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| Term | Definition |
|---|---|
At any given point, your computer can only be connected to one server at a time? True | False |
Every serving application has a Listening Port? True | True |
Which TCP port does the old active File Transfer Protocol (FTP) use by default? 20 and 21 | 20 and 21 |
Which switch is used with the Windows netstat utility to show the Process ID?
| -o |
What TCP/IP application uses Port 80? Web Server | Web Server |
Which Protocol enables you to administer a server remotely and communicate with other Servers on your Network? Telnet | Telnet |
A Web Client’s source port number, generated pseudo-randomly by the Web Client computer, is classically assigned as a _________ ports? logical | dynamic |
Which Protocol is the preferred altnernative to POP3 and runs on TCP Port 143? IMAP4 | IMAP4 Instant Messaging Access Protocol v4 |
Which term describes the status of a Port that is part of an active, working endpoint pair? established port | established port |
A Port Number is an 8-bit value between 0 and 65535? True | False |
Which type of Port has a number in the 1024 to 49151 range? dynamic | registered |
Connectionless sessions are designed to check for errors? True | False |
What name is given to the Port Numbers in the range of 0 to 1023? private port numbers | well-known port numbers |
Which Protocol involves a three-way handshake? UDP | TCP Transmission Control Protocol |
The Internet Control Message Protocol (ICMP) works at Layer 3 to deliver Connection-Oriented Packets? True | False Explanation: |
Describe how you would view the information converning open sessions stored in RAM on a Windows Computer? | First, open the Command Prompt Explanation: |
Describe how the Network Time Protocol (NTP) operates? | Operates in a hierarchical fashion or “Clock Strata”. |
Briefly describe Registered Ports? | Range between 1024 to 49151 and are NOT assigned or controlled, but can be “Registered” to prevent duplication. |
Briefly explain HTTP’s weakness as regards to handling Web Pages? | It’s NOT Secure. Port 80 |
Describe how the Zoom Client connects? | Uses a combination of TCP and UDP. |
A Protocol that works on the surface exactly like Telnet, but has Security, is _________? | Secure Shell Service (SSH) |
Dynamic Ports are also called ________? | Private Ports Explanation: |
You can tell a Web Page is using HTTPS by the URL, which starts with ____________? | https:// |
With a _________ communication Protocol, there is no acknowledgement or any closing? | connectionless |
Hypertext Transfer Protocol Secure (HTTPS) uses TCP Port ? | 443 |
Which term describes the status for a Socket that is prepared to respond to any traffic destined for the socket's port number? open port | open port |
A particular multicast called an IGMP group is assignde an address in which class range? Class C | Class D |
Which term defines a number used by the operating system to track all the running programs? socket | Process ID (PID) |
Which term refers to the session information stored by a computer on one side of a session? connection | endpoint |
Many years ago, the ping command had a bug that allowed malicious users to send malformed ping packets to a destination, causing _? the blue screen of death | the ping of death |
Mozilla Firefox is an example of a application? mail client | Web Client |
The Web is composed of severs running Web server software, such as Apache HTTP Server, that speak the Hypertext Transfer Protocol (HTTP)? True | True |
Telnet runs on TCP ? port 21 | port 23 |
Which command is universally known as the "Show me the Endpoint" Utility? netstat | netstat |
Which Transport Layer Protocol does Trivial File Transfer Protocol (TFTP) use? UDP | UDP |
What File Transfer Protocol uses UDP Port 69? FTP | TFTP |
Describe Active File Transfer Protocol (FTP)? | The FTP Client starts listening on a random Port for incoming data connections from the FTP Server, the FTP Client sends the FTP Request to inform the FTP Server on which Port it is Listening. |
Describe how the Computers on each side of a Session keep track of the status of the Connection? | Session Information is stored in RAM called a Socket or Endpoint. |
Describe the challenge associated with Multicast Communication and review how Multicast Communication operates, the IP Address Range involved, and the Protocol that makes this possible? | The Challenge - Determining who wants to receive the Multicast and who does NOT. |
Describe Query Language? | Refers to any computer programming language that requests and retrieves data from Database and Information Systems by sending Queries. |
What is a Dumb Terminal? | It's a Local System, generally a monitor, keyboard, and a mouse, but very little other processing power and features. |
Clearly defined numbers exist for every popular or well-known TCP/IP Application? | Port |
_ was the original Protocol used on the Internet for Transferring Files? | FTP (File Transfer Protocol) |
The Port Numbers from 1024 to 49151 are called _ Ports? | Registered |
Two mail server types dominate the once-fragmented email server space and Postfix? | Exim |
The Internet Control Message Protocol (ICMP) works at to deliver connectionless packets? Layer 1 | Layer 3 (Network) |
Which Protocol is popular for moving files between computers on the same LAN, where the chances of losing packets are very small? ICMP | TFTP (Trivial File Transfer Protocol) |
If you ping a device and no echo reply comes back before the default time, ping will respond with a _ message? server overload issue | request timed out |
Briefly list and describe the three different protocols that the Internet uses to transfer and receive traditional Email? | SMTP - Simple Mail Transfer Protocol, Sends Email, Port 25. POP3 - Post Office Protocol version 3, Retrieves Email, downloads the Email to your local Computer and removes it from the Server, and read them even when you are offline, Port 110. IMAP - Internet Message Access Protocol, Retrieves Email, allows simultaneous access by multiple clients, more suitable if you're accessing your Email from different locations or managed by multiple users, Port 143. |
Briefly explain the relationship between the Web and the Internet? | Web - Pages you see when you're at a device using a Web Browser. |
Describe Exim? | It's a Message Transfer Agent (MTA) Email Server serving millions of users daily. |
Servers accept incoming Email and sort out the mail for recipients into individual storage area ___? | mailboxes |
Traditionally, FTP uses its ___ process to Transfer Data? | active |
__ is used to Send Email messages via TCP Port 25? | SMTP (Simple Mail Transfer Protocol) |
Active FTP uses TCP Ports and by default? | 20 | 21 |