Amanda the network administrator is configuring a router to send data from a local network to a remote network over the internet. The data moves down through the OSI model, where headers and trailers are added at different layers before being transmitted. Which of the following best describes this process?

A company implements encryption methods for secure communication between web browsers and servers. Which OSI layer is responsible for encrypting and decrypting data during transmission?

A user logs into a remote desktop session using Remote Desktop Protocol, which maintains a connection for an extended period. Which OSI layer is responsible for establishing and maintaining this session?

A user experiences weak wireless connectivity due to radio frequency interference from other electronic devices. Which OSI layer is affected?

Which layer of the OSI model is responsible for splitting data into smaller pieces for transmission between different types of networks?

Which layer of the OSI model is responsible for delivering data to the user and is the layer we interact with directly?

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

Which layer of the OSI model is responsible for starting and stopping communication between endpoints?

FTP, DHCP, SMTP, SNMP, and Telnet are all protocols that are utilized by Applications and Web Browsers, so you would find these at what layer of the OSI Model?

OSI Model 6th layer

The OSI model layer that exchanges, and dialogues between the applications on each host is the _______ layer.

The _______ of the OSI model is responsible for node to node delivery of the message.

Sandy initiates a web request to access a website. The request is processed by the application layer and then passed down through the OSI model, where additional protocol information is added before transmission. At which layer of the OSI model is a segment first created during encapsulation?

Micheal the network technical installed fiber optic cables to improve network speed and reduce electromagnetic interference. Which OSI layer is responsible for this physical transmission?

Michelle downloads a compressed ZIP file from a cloud storage service. Which OSI layer is responsible for handling file compression before transmission?

A switch forwards an ethernet frame using the MAC addresses to another network device on the local network. Which OSI layer is responsible for this process?

A student is sending an email using Google Mail that is configured with a SMTP/IMAP email service. Which OSI layer is responsible for handling the email protocols?

An employee downloads an email attachment over an enterprise network. The attachment is received in multiple layers of encapsulated data units (PDUs) before being processed by the email application. Which of the following is the first step in the decapsulation process?

What is the primary function of a MAC address in networking?

Which of the following are ethernet cable issues?

Which of the following technologies uses digital signals in data transmission?

What type of ethernet cable should be used if it is running through an attic or above lighting of any kind with the purpose of preventing fires?

• Some switches are capable of (PoE) Power over Ethernet, a power source for access points. What color wire pair are used to provide power?

Encapsulation is the process of adding headers and trailers to the data payload as it traverses up the OSI layers (1-7). De-encapsulation is the process of removing headers and trailers from the data payload as it traverses down the OSI layers (7-1).

Which layer in the OSI model will communicate with an IP Header?

Which layer in the OSI model will communicate with a Segment Header?

Which layer in the OSI model will communicate using port numbers?

What PDU will be used to identify layers 7, 6, & 5?

Which layer will be to communicate use a physical address?