BL1
LAN
LOCAL AREAN NETWORK
Why is TCP considered reliable?
It provides acknowledgments and retransmissions
USER DATAGRAM PROTOCOL
Compare TCP and UDP for online gaming
UDP is preferred due to low latency.
Recommend the best topology for a university campus.
STAR
Which device forwards packets between networks?
ROUTER
Why is DNS necessary?
It converts domain names into IP addresses.
Which subnet mask would you apply for approximately 250 hosts?
250 hosts?255.255.255.0 (/24)
A network experiences broadcast storms. Which device configuration should be examined?
Switch/VLAN configuration
Recommend the best routing protocol for a large enterprise network.
OSPF
Which protocol assigns IP addresses automatically?
DHCP
Explain the function of a firewall.
Protects the network by filtering traffic
A network has excessive collisions. Which device should replace the hub?
sWITCH
Analyze why NAT is required.
Conserves IPv4 addresses and provides security
Evaluate whether VLANs improve network security.
Yes, by isolating broadcast domains.
Which layer of the OSI model is responsible for routing?
NETWORK LAYER
Why is HTTP called a stateless protocol?
It does not retain session information between requests.
Determine why a client cannot access the Internet despite having an IP address.
Gateway or DNS configuration issue
Evaluate whether HTTPS should replace HTTP for all websites
Yes, because it provides encryption and authentication.
Which protocol translates domain names into IP addresses?
DNS
Explain the purpose of MAC addresses
They uniquely identify devices on a local network.
Which protocol would you use to remotely log into a Linux server securely?
SSH
Compare OSI and TCP/IP models.
OSI has 7 layers; TCP/IP has 4 layers.
Evaluate the use of cloud networking versus traditional networking.
Depends on scalability, cost, and flexibility requirements.