Load Balancing

Question 1

What is a load balancer?

Answer 1

A device or software that distributes network or application traffic across multiple servers.

Question 2

True or False: Load balancers can only be hardware-based.

Answer 2

False

Question 3

What are the two main types of load balancers?

Answer 3

Hardware load balancers and software load balancers.

Question 4

Fill in the blank: A __________ load balancer operates at the transport layer of the OSI model.

Answer 4

Layer 4

Question 5

What is the primary function of a Layer 7 load balancer?

Answer 5

To distribute traffic based on application-level data.

Question 6

Which type of load balancer is known for being more cost-effective?

Answer 6

Software load balancer

Question 7

True or False: Load balancers can enhance application availability.

Answer 7

True

Question 8

What is a key benefit of using a hardware load balancer?

Answer 8

High performance and specialized hardware optimization.

Question 9

Multiple Choice: Which of the following is NOT a type of load balancer? A) DNS Load Balancer B) Database Load Balancer C) Application Load Balancer D) Network Load Balancer

Answer 9

B) Database Load Balancer

Question 10

What is the role of a DNS load balancer?

Answer 10

To distribute traffic by resolving domain names to different IP addresses.

Question 11

Fill in the blank: __________ load balancers are commonly used for microservices architectures.

Answer 11

Application

Question 12

What is an example of a popular software load balancer?

Answer 12

NGINX

Question 13

True or False: Load balancers do not provide SSL termination.

Answer 13

False

Question 14

What type of load balancer operates at the application layer?

Answer 14

Layer 7 load balancer

Question 15

Multiple Choice: Which protocol is commonly used by Layer 4 load balancers? A) HTTP B) TCP C) UDP D) All of the above

Answer 15

D) All of the above

Question 16

Fill in the blank: __________ refers to the method of directing traffic based on the content of the request.

Answer 16

Content-based routing

Question 17

What is a common use case for hardware load balancers?

Answer 17

High-traffic websites requiring reliable performance.

Question 18

True or False: Load balancers can help in scaling applications horizontally.

Answer 18

True

Question 19

What is the primary advantage of using a cloud-based load balancer?

Answer 19

Scalability and reduced infrastructure management.

Question 20

Multiple Choice: Which layer of the OSI model does a Layer 4 load balancer operate at? A) Application B) Transport C) Network D) Data Link

Answer 20

B) Transport

Question 21

What feature allows load balancers to detect server health?

Answer 21

Health checks

Question 22

Fill in the blank: __________ load balancers are typically integrated with cloud services.

Answer 22

Software

Question 23

True or False: Load balancers can only be used for web applications.

Answer 23

False

Question 24

What is a key characteristic of a reverse proxy load balancer?

Answer 24

It forwards client requests to the appropriate backend server.

Question 25

Multiple Choice: Which of the following is a common algorithm used by load balancers? A) Round Robin B) Least Connections C) IP Hash D) All of the above

Answer 25

D) All of the above