CCP IT Infrastructure & Networking 3 — Questions and Answers
Question 1: What is the maximum transmission unit (MTU) for a standard Ethernet frame?
- 512 bytes
- 1024 bytes
- 1500 bytes (Correct answer)
- 9000 bytes
Correct answer: 1500 bytes
Standard Ethernet has a default MTU of 1500 bytes; larger 'jumbo frames' use up to 9000 bytes on supported networks.
Question 2: Which topology connects every node directly to every other node?
- Star
- Bus
- Ring
- Mesh (Correct answer)
Correct answer: Mesh
A full mesh topology creates a direct point-to-point link between every pair of nodes in the network.
Question 3: What does QoS stand for and what does it control?
- Quality of Service — prioritizes network traffic (Correct answer)
- Queue of Sessions — manages login queues
- Quality of Security — enforces encryption policies
- Quota of Storage — limits disk usage
Correct answer: Quality of Service — prioritizes network traffic
QoS (Quality of Service) mechanisms prioritize certain types of network traffic to ensure performance for critical applications.
Question 4: Which protocol dynamically assigns IP addresses to network devices?
- ARP
- DHCP (Correct answer)
- ICMP
- SNMP
Correct answer: DHCP
DHCP (Dynamic Host Configuration Protocol) automatically assigns IP addresses and other network configuration to clients.
Question 5: In IPv6, how many bits long is an address?
- 32 bits
- 64 bits
- 128 bits (Correct answer)
- 256 bits
Correct answer: 128 bits
IPv6 uses 128-bit addresses, written as eight groups of four hexadecimal digits.
Question 6: What is the primary function of NAT in a network?
- Encrypting data in transit
- Translating private IP addresses to public IP addresses (Correct answer)
- Authenticating users on the network
- Compressing network traffic
Correct answer: Translating private IP addresses to public IP addresses
NAT (Network Address Translation) maps private internal IP addresses to one or more public IP addresses for internet access.
Question 7: Which protocol is used to monitor and manage network devices using a manager/agent model?
- FTP
- SSH
- SNMP (Correct answer)
- NTP
Correct answer: SNMP
SNMP (Simple Network Management Protocol) enables network administrators to collect metrics and manage devices like routers and switches.
CCP IT Infrastructure & Networking 3
What is the maximum transmission unit (MTU) for a standard Ethernet frame?