Google Certification -Unit 12 Practice Exam) *Q&A* (100% Correct) 2025/2026 |Verified|
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Google Educator
Google Certification -Unit 12 Practice
Exam) *Q&A* (100% Correct) 2025/2026
|Verified|
What is the primary function of the OSI model's transport layer?
To provide end-to-end communication and error recovery.
Which of the following best describes a switch in a network?
A device that ...
Google Certification -Unit 12 Practice
Exam) *Q&A* (100% Correct) 2025/2026
|Verified|
What is the primary function of the OSI model's transport layer?
To provide end-to-end communication and error recovery.
Which of the following best describes a switch in a network?
A device that forwards data frames between devices on the same network.
In IPv6, which part of the address is used to identify the network and which part identifies the host?
The first 64 bits identify the network, and the last 64 bits identify the host.
Which of the following is a characteristic of a full-duplex communication system?
Data can be transmitted and received simultaneously.
What is the primary purpose of network address translation (NAT)?
To allow multiple devices on a private network to access the internet using a single public IP
address.
Which command in Windows is used to display the IP configuration of the computer?
ipconfig.
What is the main purpose of a proxy server?
To act as an intermediary between a client and a server to improve security and manage traffic.
Which device is typically used to connect different types of networks, such as a local area network (LAN)
and a wide area network (WAN)?
1
, Router.
What does the term "broadcast" mean in the context of networking?
Sending data from one device to all devices on a network.
Which of the following best describes the function of a hub in a network?
It broadcasts data to all devices on the network, regardless of the destination.
What is the primary purpose of a VPN concentrator?
To create and manage secure VPN connections.
Which of the following is a common type of attack that involves intercepting and altering communication
between two devices?
Man-in-the-middle attack.
What is a common use for a load balancer in a network?
To distribute network traffic across multiple servers to improve performance and reliability.
Which protocol is responsible for managing the process of obtaining and renewing IP addresses in a
network?
DHCP (Dynamic Host Configuration Protocol).
What type of network topology involves a single central cable or backbone that connects all devices?
Bus topology.
What does the term "jitter" refer to in networking?
The variation in packet arrival times over a network.
What is the primary function of the network layer in the OSI model?
2
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