CCP IT Infrastructure & Networking 2 — Questions and Answers
Question 1: Which protocol uses port 443 for secure web communications?
- HTTP
- FTP
- HTTPS (Correct answer)
- SMTP
Correct answer: HTTPS
HTTPS uses TLS/SSL encryption and operates on port 443 by default.
Question 2: What does VLAN stand for in networking?
- Virtual Local Area Network (Correct answer)
- Variable Length Area Node
- Verified Link Access Node
- Virtual Linked Address Network
Correct answer: Virtual Local Area Network
VLAN (Virtual Local Area Network) logically segments a physical network into separate broadcast domains.
Question 3: Which RAID level provides disk mirroring with no striping?
- RAID 0
- RAID 1 (Correct answer)
- RAID 5
- RAID 10
Correct answer: RAID 1
RAID 1 mirrors data identically across two or more drives, providing redundancy but no performance striping.
Question 4: What is the purpose of a DMZ in network architecture?
- To increase internal LAN speed
- To host services accessible from the internet while protecting the internal network (Correct answer)
- To encrypt all outbound traffic
- To replace the need for a firewall
Correct answer: To host services accessible from the internet while protecting the internal network
A DMZ (Demilitarized Zone) is a network segment that exposes external-facing services while isolating the internal network.
Question 5: Which wireless standard operates exclusively in the 5 GHz band?
- 802.11b
- 802.11g
- 802.11a (Correct answer)
- 802.11n
Correct answer: 802.11a
802.11a operates only in the 5 GHz frequency band, offering up to 54 Mbps throughput.
Question 6: What type of server translates domain names to IP addresses?
- DHCP server
- DNS server (Correct answer)
- Proxy server
- SMTP server
Correct answer: DNS server
A DNS (Domain Name System) server resolves human-readable domain names into numeric IP addresses.
Question 7: Which device operates at Layer 2 of the OSI model and forwards frames based on MAC addresses?
- Router
- Hub
- Switch (Correct answer)
- Firewall
Correct answer: Switch
A network switch operates at OSI Layer 2 (Data Link) and uses MAC address tables to forward frames to the correct port.
CCP IT Infrastructure & Networking 2
Which protocol uses port 443 for secure web communications?