200-301 Packets Practice Questions
The free 200-301: Cisco Certified Network Associate (CCNA) questions that deal with packets, with answers and explanations. The full bank and the timed practice test cover every topic the exam asks about.
Question #4
Which Layer 2 switch function encapsulates packets for different VLANs so that the packets traverse the same port and maintain traffic separation between the VLANs?
Correct answer: C
Explanation
VLAN tagging (802.1Q) inserts a VLAN ID into each frame so multiple VLANs share one trunk port while their traffic stays logically separated.
Question #5
Which type of network attack overwhelms the target server by sending multiple packets to a port until the half-open TCP resources of the target are exhausted?
Correct answer: A
Explanation
A SYN flood sends many TCP SYN packets without completing the handshake, filling the server's half-open connection table until it can accept no new sessions.
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