IS 410 Midterm Exam Questions with Correct Answers Latest Update 2025/2026
NSlookup - Answers Name Server Lookup
Give me the IP address to google.com
Where did we get that answer? (non-authoritative answer - came from local cache, not google)
PING - Answers Sends out packet to local device
-How long did it take packet to get there?
Trace Route - Answers Follow packet, seeing which devices it goes through
Takes longer than actual packet sending because have to query route
Switches not there, only uses physical addresses
ARP-a - Answers All physical devices we can see and know about
IP Config - Answers Shows how our current IP is configured
-How everything assigned through DHCP
Tim Burners Lee - Answers Father of world wide web
2 Most important tech innovations that drove widespread adoption of internet - Answers
eCommerce
Protocols (allow us to make sure we're all talking the same language)
5 Layers - Answers 1. Application - HTML - software
2. Transport - TCP - how move message, phone call (end-to-end), link app to network, segment
packets
3. Network - IP - routing, addressing
4. Data Link - ethernet - transmitting data
5. Physical - actual cables
IP - Answers Internet Protocol
routing, addressing, where its going
TCP - Answers Transmission Control Protocol
-about how the conversation happens - "phone call" - establishes virtual circuits
, -responsible for segmentation and reassembly
-stateful connection
-error checking
Standard for what everyone is using
Routers - Answers Fast computers who move packets around, lots of gossiping
HTTP - Answers Hypertext Transfer Protocol
IMAP - Answers Internet Message Access Protocol
POP3 - Answers Post Office Protocol
SMTP - Answers Simple Mail Transfer Protocol
FTP - Answers File Transfer Protocol
TCP - Answers Transmission Control Protocol
-stateful connection
-error checking
UDP - Answers User Datagram Protocol
-stateless
-sends packets, doesn't check for errors
SPX - Answers Sequenced Packet Exchange
-older, not really used any more (TCP/IP instead)
ICMP - Answers Internet Control Message Protocol
ARP - Answers Address Resolution Protocol
-converts IP address into physical address
IPX - Answers Internetwork Packet Exchange
Layer Summary - Answers Application
-Application formatting of data
NSlookup - Answers Name Server Lookup
Give me the IP address to google.com
Where did we get that answer? (non-authoritative answer - came from local cache, not google)
PING - Answers Sends out packet to local device
-How long did it take packet to get there?
Trace Route - Answers Follow packet, seeing which devices it goes through
Takes longer than actual packet sending because have to query route
Switches not there, only uses physical addresses
ARP-a - Answers All physical devices we can see and know about
IP Config - Answers Shows how our current IP is configured
-How everything assigned through DHCP
Tim Burners Lee - Answers Father of world wide web
2 Most important tech innovations that drove widespread adoption of internet - Answers
eCommerce
Protocols (allow us to make sure we're all talking the same language)
5 Layers - Answers 1. Application - HTML - software
2. Transport - TCP - how move message, phone call (end-to-end), link app to network, segment
packets
3. Network - IP - routing, addressing
4. Data Link - ethernet - transmitting data
5. Physical - actual cables
IP - Answers Internet Protocol
routing, addressing, where its going
TCP - Answers Transmission Control Protocol
-about how the conversation happens - "phone call" - establishes virtual circuits
, -responsible for segmentation and reassembly
-stateful connection
-error checking
Standard for what everyone is using
Routers - Answers Fast computers who move packets around, lots of gossiping
HTTP - Answers Hypertext Transfer Protocol
IMAP - Answers Internet Message Access Protocol
POP3 - Answers Post Office Protocol
SMTP - Answers Simple Mail Transfer Protocol
FTP - Answers File Transfer Protocol
TCP - Answers Transmission Control Protocol
-stateful connection
-error checking
UDP - Answers User Datagram Protocol
-stateless
-sends packets, doesn't check for errors
SPX - Answers Sequenced Packet Exchange
-older, not really used any more (TCP/IP instead)
ICMP - Answers Internet Control Message Protocol
ARP - Answers Address Resolution Protocol
-converts IP address into physical address
IPX - Answers Internetwork Packet Exchange
Layer Summary - Answers Application
-Application formatting of data
