54 Load Balancing questions from the Networking bank, written for Indian campus drives and tech interviews. Every question has a verified answer and an AI-tutor explanation on placd.
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A.the single address clients connect to that the load balancer fronts
B.a device that distributes incoming traffic across multiple backend servers
C.decrypting HTTPS at the load balancer so backends receive plaintext
D.a method that sends each new request to the next server in rotation
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2. Which term means: "a device that distributes incoming traffic across multiple backend servers"?
Junior
A.Virtual IP (VIP)
B.Layer 7 load balancing
C.Failover
D.Load balancer
Answer + AI explanation with Pro
3. Which statement is correct?
Junior
A.Load balancer — the group of servers a load balancer distributes requests across
B.Load balancer — distributing traffic based on application data such as URL or HTTP headers
C.Load balancer — a server that fronts backends, forwarding client requests and returning responses
D.Load balancer — a device that distributes incoming traffic across multiple backend servers
Answer + AI explanation with Pro
4. What is Round-robin?
Junior
A.the group of servers a load balancer distributes requests across
B.mapping connections to backends so adding or removing a node minimizes remapping
C.a method that sends each new request to the next server in rotation
D.directing users to the best data center using DNS or anycast
Answer + AI explanation with Pro
5. Which term means: "a method that sends each new request to the next server in rotation"?
Junior
A.Global server load balancing (GSLB)
B.Round-robin
C.Virtual IP (VIP)
D.Backend pool
Answer + AI explanation with Pro
6. Which statement is correct?
Junior
A.Round-robin — advertising one IP from many sites so routing sends users to the nearest node
B.Round-robin — a method that sends each new request to the next server in rotation
C.Round-robin — the group of servers a load balancer distributes requests across
D.Round-robin — distributing traffic based on application data such as URL or HTTP headers
Answer + AI explanation with Pro
7. What is Health check?
Junior
A.advertising one IP from many sites so routing sends users to the nearest node
B.a periodic probe that removes unhealthy backends from rotation
C.distributing traffic based on IP and TCP/UDP port without inspecting payload
D.a device that distributes incoming traffic across multiple backend servers
Answer + AI explanation with Pro
8. Which term means: "a periodic probe that removes unhealthy backends from rotation"?
Junior
A.Direct Server Return (DSR)
B.Health check
C.Round-robin
D.Connection draining
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9. Which statement is correct?
Junior
A.Health check — the single address clients connect to that the load balancer fronts
B.Health check — automatically shifting traffic to a standby resource when the primary fails
C.Health check — a method that sends each new request to the next server in rotation
D.Health check — a periodic probe that removes unhealthy backends from rotation
Answer + AI explanation with Pro
10. What is Virtual IP (VIP)?
Junior
A.routing a client's requests to the same backend for the session's duration
B.advertising one IP from many sites so routing sends users to the nearest node
C.the single address clients connect to that the load balancer fronts
D.the group of servers a load balancer distributes requests across
Answer + AI explanation with Pro
11. Which term means: "the single address clients connect to that the load balancer fronts"?
Junior
A.Virtual IP (VIP)
B.Direct Server Return (DSR)
C.Failover
D.Load balancer
Answer + AI explanation with Pro
12. Which statement is correct?
Junior
A.Virtual IP (VIP) — mapping connections to backends so adding or removing a node minimizes remapping
B.Virtual IP (VIP) — the single address clients connect to that the load balancer fronts
C.Virtual IP (VIP) — a server that fronts backends, forwarding client requests and returning responses
D.Virtual IP (VIP) — distributing traffic based on IP and TCP/UDP port without inspecting payload
Answer + AI explanation with Pro
13. What is Layer 4 load balancing?
Mid
A.distributing traffic based on application data such as URL or HTTP headers
B.decrypting HTTPS at the load balancer so backends receive plaintext
C.distributing traffic based on IP and TCP/UDP port without inspecting payload
D.a periodic probe that removes unhealthy backends from rotation
Answer + AI explanation with Pro
14. Which term means: "distributing traffic based on IP and TCP/UDP port without inspecting payload"?
Mid
A.Layer 4 load balancing
B.Least connections
C.Session persistence (sticky sessions)
D.Global server load balancing (GSLB)
Answer + AI explanation with Pro
15. Which statement is correct?
Mid
A.Layer 4 load balancing — distributing traffic based on IP and TCP/UDP port without inspecting payload
B.Layer 4 load balancing — a periodic probe that removes unhealthy backends from rotation
C.Layer 4 load balancing — round-robin biased so more capable servers receive proportionally more traffic
D.Layer 4 load balancing — automatically shifting traffic to a standby resource when the primary fails
Answer + AI explanation with Pro
16. What is Layer 7 load balancing?
Mid
A.distributing traffic based on application data such as URL or HTTP headers
B.automatically shifting traffic to a standby resource when the primary fails
C.distributing traffic based on IP and TCP/UDP port without inspecting payload
D.a periodic probe that removes unhealthy backends from rotation
Answer + AI explanation with Pro
17. Which term means: "distributing traffic based on application data such as URL or HTTP headers"?
Mid
A.Direct Server Return (DSR)
B.Health check
C.Reverse proxy
D.Layer 7 load balancing
Answer + AI explanation with Pro
18. Which statement is correct?
Mid
A.Layer 7 load balancing — distributing traffic based on application data such as URL or HTTP headers
B.Layer 7 load balancing — directing users to the best data center using DNS or anycast
C.Layer 7 load balancing — advertising one IP from many sites so routing sends users to the nearest node
D.Layer 7 load balancing — letting existing connections finish before removing a backend from service
Answer + AI explanation with Pro
19. What is Session persistence (sticky sessions)?
Mid
A.advertising one IP from many sites so routing sends users to the nearest node
B.letting existing connections finish before removing a backend from service
C.routing a client's requests to the same backend for the session's duration
D.a device that distributes incoming traffic across multiple backend servers
Answer + AI explanation with Pro
20. Which term means: "routing a client's requests to the same backend for the session's duration"?
Mid
A.Failover
B.Load balancer
C.Global server load balancing (GSLB)
D.Session persistence (sticky sessions)
Answer + AI explanation with Pro
21. Which statement is correct?
Mid
A.Session persistence (sticky sessions) — routing a client's requests to the same backend for the session's duration
B.Session persistence (sticky sessions) — round-robin biased so more capable servers receive proportionally more traffic
C.Session persistence (sticky sessions) — a periodic probe that removes unhealthy backends from rotation
D.Session persistence (sticky sessions) — letting existing connections finish before removing a backend from service
Answer + AI explanation with Pro
22. What is Least connections?
Mid
A.advertising one IP from many sites so routing sends users to the nearest node
B.sending new requests to the backend with the fewest active connections
C.a periodic probe that removes unhealthy backends from rotation
D.a method that sends each new request to the next server in rotation
Answer + AI explanation with Pro
23. Which term means: "sending new requests to the backend with the fewest active connections"?
Mid
A.Least connections
B.Backend pool
C.Layer 7 load balancing
D.Anycast load balancing
Answer + AI explanation with Pro
24. Which statement is correct?
Mid
A.Least connections — automatically shifting traffic to a standby resource when the primary fails
B.Least connections — sending new requests to the backend with the fewest active connections
C.Least connections — distributing traffic based on IP and TCP/UDP port without inspecting payload
D.Least connections — a device that distributes incoming traffic across multiple backend servers
Answer + AI explanation with Pro
25. What is SSL/TLS termination?
Senior
A.decrypting HTTPS at the load balancer so backends receive plaintext
B.distributing traffic based on IP and TCP/UDP port without inspecting payload
C.mapping connections to backends so adding or removing a node minimizes remapping
D.automatically shifting traffic to a standby resource when the primary fails
Answer + AI explanation with Pro
26. Which term means: "decrypting HTTPS at the load balancer so backends receive plaintext"?
Senior
A.Maglev / consistent hashing
B.Health check
C.SSL/TLS termination
D.Anycast load balancing
Answer + AI explanation with Pro
27. Which statement is correct?
Senior
A.SSL/TLS termination — a mode where backends reply directly to clients, bypassing the load balancer on egress
B.SSL/TLS termination — decrypting HTTPS at the load balancer so backends receive plaintext
C.SSL/TLS termination — the single address clients connect to that the load balancer fronts
D.SSL/TLS termination — the group of servers a load balancer distributes requests across
Answer + AI explanation with Pro
28. What is Global server load balancing (GSLB)?
Senior
A.a mode where backends reply directly to clients, bypassing the load balancer on egress
B.a device that distributes incoming traffic across multiple backend servers
C.directing users to the best data center using DNS or anycast
D.the group of servers a load balancer distributes requests across
Answer + AI explanation with Pro
29. Which term means: "directing users to the best data center using DNS or anycast"?
Senior
A.Direct Server Return (DSR)
B.Anycast load balancing
C.Reverse proxy
D.Global server load balancing (GSLB)
Answer + AI explanation with Pro
30. Which statement is correct?
Senior
A.Global server load balancing (GSLB) — directing users to the best data center using DNS or anycast
B.Global server load balancing (GSLB) — decrypting HTTPS at the load balancer so backends receive plaintext
C.Global server load balancing (GSLB) — the single address clients connect to that the load balancer fronts
D.Global server load balancing (GSLB) — sending new requests to the backend with the fewest active connections
Answer + AI explanation with Pro
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