PAPER 2026 QUESTIONS SOLUTIONS GRADED
A+
◉ 74%. Answer: What percent of network outages impact
businesses?
◉ Twitter, Delta Airlines. Answer: name the prominent companies
that have dealt with outages
◉ 2016. Answer: when did Twitter's outage occur?
◉ 4 days. Answer: how long was Twitter out for?
◉ $82 million. Answer: how much did Twitter lose during the
outage?
◉ $150 million. Answer: How much did Delta lose during the
outage?
◉ 200 minutes. Answer: What is the average downtime of an
outage?
,◉ $300,000/hour. Answer: How much can a business lose in an hour
during an outage?
◉ $5600/hour. Answer: How much can a business lose in an minute
during an outage?
◉ internet. Answer: a large network made up of clients
◉ clients. Answer: desktops, laptops CONNECTED to a server for
access to the internet
◉ peripheral device. Answer: hardware with no IP address
◉ node. Answer: anything that has an IP address
◉ computer tower, laptop, motherboard. Answer: what are some
examples of nodes?
◉ communication, sharing resources, and economic value. Answer:
what are the benefits of a network?
, ◉ network interface card, protocols, twisted pair cable, hub.
Answer: steps to building your own network
◉ network interface card (NIC). Answer: a chip that connects your
computer to the internet
◉ ethernet card. Answer: what is the most popular kind of NIC?
◉ True. Answer: T/F; each ethernet card has its own MAC address
◉ no; they'd collide. Answer: can two different ethernet cards have
the same MAC address?
◉ TCP/IP. Answer: ensures reliability (breaks up packet, sends out
packet, and pieces it together when received)
◉ UDP. Answer: NOT reliable; for streaming
◉ domain name server (DNS). Answer: holds all IP addresses
◉ used to help find the IP address of a computer you're trying to
send something to. Answer: what is the DNS used for?