Network+ 1.3.5 & 1.3.6 Transport and Application Layer

What is the primary role of the WAN interface in network security?

• To provide internet access

• To act as the network perimeter

• To manage user accounts

• To encrypt data

At layer 4, each application is identified by a ______.

• A) IP address

• B) Port number

• C) MAC address

• D) Protocol

What is the purpose of the 'Account Management' section in a router's interface?

• To change the Wi-Fi password

• To manage user accounts and passwords

• To set up parental controls

• To configure network security.

In the 'Remote Management' section, what must be done to enable remote access?

• Check the 'Enable' box

• Enter the IP/MAC Address

• Change the port number

• Update the firmware.

What does PSTN stand for in the context of Internet access?

• Public Switched Telephone Network

• Private Switched Telephone Network

• Public Shared Telephone Network

• Private Shared Telephone Network

The Internet Assigned Numbers Authority (IANA) is responsible for the allocation of ______.

• Domain Names

• IP Addresses

• Email Servers

• Web Hosting

Which of the following layers in the Internet model corresponds to OSI layers 1 and 2?

• Internet layer

• Link layer

• Transport layer

• Application layer

In the Internet model, the Transport layer maps approximately to which OSI layers?

• 1 and 2

• 3 and 4

• 4 and 5

• 6 and 7

Drag and drop the following OSI model layers in order:

​ Application, ​ (a)   ,​ (b)   , ​ (c)   , ​ (d)   ​ (e)   , Physical

• Presentation
• Session
• Transport
• Network,
• Data Link

Which layer of the OSI model is responsible for describing how data is being delivered and where it is being delivered into a system?

• Application Layer

• Transport Layer

• Network Layer

• Data Link Layer