Interview questions on networking

1. Networking Interview Questions
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2. Routing
• Why is routing required
• Can a switch route IP Packets
• Can a routing protocol be routed
• What is the TTL value of a routing protocol
• How is a network layer loop prevented by IP
Networks
• What is the difference between default route
and default gateway

3. Switching
• How many mac-address can a switch learn on
it’s port
• If two switches are connected to each other
using one physical link, will a loop be formed
• Which protocol is used to prevent layer 2
loops
• Does a switch understand IP address
• Can a hub be connected to a switch

4. Transport Layer protocols
• When does TCP initiate the 4 way handshake
• Why is the TCP 3 way handshake required
• Which transport layer protocol does ping use
• Which field in the TCP header is used to manage
data
• What is the source port number when a DNS
client initiates a DNS Server request
• What is the transport layer protocol used by
HTTPS

5. For more questions with explanation
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