Network Administrator Positions

ممكن الأسئلة دي برضه تلاقيها في الـ Help Desk فمن الأحسن تكون محضرها برضه

1. What is the difference between layer 2 and layer 3 in the OSI model ؟

2. What is the difference between a hub, switch, and router ؟

3. What is a VLAN ؟

4. What is the difference between TCP and UDP ؟

5. How do you distinguish a DNS problem from a network problem ؟

6. What are a runt, Giant, and collision ؟

7. What is a broadcast storm ؟

8. What is the purpose of VRRP ؟

9. What is a VPN ؟

10. What is a default route ؟

11. How do you set a default route on an IOS Cisco router ؟

12. What is a metric ؟

13. What is a MAC address ؟

14. What is ARP/RARP ؟

15. Describe a TCP connection sequence.

16. What is MTU ؟

17. What other TCP setting can you modify besides MTU to shorten packets ؟

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