Net+ 6.1/6.2 Lesson

Word Cloud

One important word from the objectives...

Multiple Choice

In networking, the transport layer is responsible for

• end-to-end communication and reliable data transfer
• session management and authentication
• physical addressing and routing
• data encryption and decryption

Multiple Choice

True or False: the transport layer tells data where to go.

• True
• The transport layer directs traffic
• False
• The transport layer manages data routing

Reorder

Looking at the picture, order this correctly. The process starts with 1.

• The server opens up TCP ports, like 80 and 143

• Clients attempt to access the site on the server

• The browser opens up a ephemeral port, such as 47747

• The IP address of the client attaches the ephemeral port to itself, such as 192.168.1.1:47747 to communicate with the server at 192.168.1.254:80

• Once web browsing is complete, port 47747 closes down

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Multiple Choice

When the transport layer is being used, all IPs and ports connected to them are considered: unique or redundant?

• unique
• duplicated
• interchangeable
• common

Multiple Choice

In networking, TCP stands for

• Transmission Connection Protocol
• Transfer Control Protocol
• Transmission Communication Protocol
• Transmission Control Protocol

Multiple Choice

The primary role of TCP is to ensure

• data encryption
• unreliable data transmission
• reliable data transmission
• fast data transmission

Multiple Choice

If data packets are dropped, what will TCP do?

• TCP will ignore the dropped packets and continue sending new ones.
• TCP will retransmit the lost packets and may reduce the transmission rate.
• TCP will increase the transmission rate to compensate for the loss.
• TCP will terminate the connection immediately upon detecting packet loss.

Multiple Choice

TCP relies on THESE to ensure data is delivered; examples of THESE are source/destination addresses and checksum

• packets
• headers
• segments
• frames

Multiple Choice

TCP uses headers, choose the INCORRECT header.

• Source port

• ACK number

• ECC letter

• Flags

Multiple Choice

In the TCP handshake, syn means

• SYN means synchronize in the TCP handshake.
• SYN means stop in the TCP handshake.
• SYN means send in the TCP handshake.
• SYN means secure in the TCP handshake.

Multiple Choice

In the TCP handshake, syn & ack means

• SYN is for closing a connection, and ACK is for initiating a connection.
• SYN is for acknowledging receipt of data, and ACK is for terminating a connection.
• SYN is for data transfer, and ACK is for error checking.
• SYN is for initiating a connection, and ACK is for acknowledging receipt of the SYN.

Multiple Choice

In the TCP handshake, ack means

• Acknowledgment of received packets
• Confirmation of packet delivery
• Request for packet retransmission
• Indication of packet size

Multiple Choice

The TCP Handshake is like a handshake IRL because

• The TCP Handshake is like a handshake IRL because it establishes mutual agreement and readiness to communicate.
• The TCP Handshake is like a handshake IRL because it is a one-time event without follow-up.
• The TCP Handshake is like a handshake IRL because it requires a third party to validate the agreement.
• The TCP Handshake is like a handshake IRL because it involves physical contact.

Multiple Choice

UDP stands for

• User Datagram Protocol
• User Data Protocol
• Universal Datagram Protocol
• User Datagram Package

Multiple Choice

UDP is different than TCP because

• UDP guarantees delivery of packets in the same order as sent.
• UDP is connectionless and does not guarantee delivery, while TCP is connection-oriented and ensures reliable delivery.
• TCP is used for streaming video while UDP is used for file transfers.
• UDP is slower than TCP due to its connection-oriented nature.

Multiple Choice

Connectionless in UDP means

• UDP guarantees delivery of packets.
• UDP does not establish a connection before data transmission.
• UDP requires a handshake before sending data.
• UDP maintains a connection state during transmission.

Multiple Choice

If UDP does not establish a connection, how does it know data is received?

• UDP does not know if data is received; it relies on the application layer for any acknowledgment.
• UDP uses a handshake to confirm data receipt.
• UDP tracks packet delivery through sequence numbers.
• UDP sends a receipt acknowledgment with each packet.

Multiple Choice

Why would a user use UDP?

• To establish a secure connection before data transfer.
• For real-time video streaming with guaranteed quality.
• To ensure reliable data delivery with no loss.
• A user would use UDP for faster data transmission with acceptable data loss.

Multiple Choice

These types of applications use UDP instead of TCP

• Online gaming, video streaming, VoIP
• Email clients
• File transfer applications
• Web browsing

Multiple Choice

UDP uses a response/request system which makes it fast, but what could happen?

• There is no possibility of data loss with UDP.
• UDP guarantees data integrity with every packet.
• Data loss or out-of-order delivery may occur.
• Data is always delivered in the correct order.

Multiple Choice

DHCP stands for?

• Dynamic Host Communication Protocol
• Dynamic Host Configuration Protocol
• Dynamic Host Configuration Process
• Dynamic Host Control Protocol

Reorder

You are a new client on the network and you need an IP address, put the events in order.

• DHCP Discover

• DHCP Offer

• DHCP Request

• DHCP ACK

1

2

3

4

• 1
• 2
• 3
• 4

Multiple Select

Choose 2: a DHCP server must be configured with

• a static IP address

• Configured with a range of IP addresses/subnet masks (scope)

• Network printer settings, firewall rules
• MAC address, hostname

Categorize

Options (9)

Ensures a device always receives the same IP address

Tied to a device’s MAC address

Ideal for devices that need a consistent IP address

Prevents a range of IP addresses from being assigned

A range of IP addresses is set aside and not distributed

Ideal for addresses statically assigned to devices

Server must have static IP

Server must have range of IPs/Scopes

Dynamic Host Configuration Protocol

DHCP categories

Reservations

Exclusions

Configuration

DHCP meaning

Labelling

Match the protocol to the picture

Drag labels to their correct position on the image

UDP

TDR

UDT

TCP

DNS

DHCP

Word Cloud

One word from the section