CCNA quiz
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What term describes the layout of a computer network?
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More questions about CCNA
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Which routing protocol uses hop count as its metric?
Answer: RIP
Why: RIP sets a strict maximum of 15 hops, meaning a network 16 routers away is treated as unreachable.
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Which command tests basic network connectivity?
Answer: ping
Why: Ping operates by sending ICMP Echo Request packets and awaiting Echo Reply packets from the destination host.
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Which VLAN is the factory default on Cisco switches?
Answer: VLAN 1
Why: VLAN 1 cannot be deleted or renamed because core switch management protocols rely on it by default.
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Which OSI layer deals with physical cables and electrical signals?
Answer: Layer 1
Why: Layer 1 converts raw digital bits into physical light pulses, electrical voltages, or radio waves.
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What malware secretly records everything you type?
Answer: Keylogger
Why: Keyloggers exist as both background software and tiny hardware plugs inserted between a keyboard and computer.
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Which protocol guarantees reliable delivery?
Answer: TCP
Why: TCP ensures reliability by establishing connections with a three-way handshake and acknowledging received packets.
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