Networking Concepts
Your message is sent in packet format over a network. What is a packet made up of?
Header and Payload
Your SOHO machine includes 4 functions: Switch, Access Point, Internet Router and Modem. Which is responsible for allowing your device to connect to the internet wirelessly?
Access Point
True or False: When you're on a public network, your computer is hidden from others on the same network.
True!
Give an example of Direct Attached Storage
HDD or SSD
What protocols are used to send an email?
POP3 and SMTP
What are pros/cons for each of each of the transport layers: UDP and TCP
UDP: Fast, no feedback
TCP: Feedback is heard, takes longer
What does SSID stand for and what does it do?
Service Set ID; it helps identify your wifi
What is an example of Active Content
Scripting, Add-ons, Flash/Silverlight, Java
Describe NAS (Network Attached Storage)
A dedicated Hardware Appliance used to store and share information! It's connected to your SOHO router through Ethernet. It can be configured with multiple disks.
What is a firewall used for?
Restricts access to a computer network from both directions!
How do you identify the the Network ID from the Host ID in an IP Address?
By using the subnet mask
Put the following Wireless security standards in order from least protective to most protective:
WPA, WPA2, WEP
WEP, WPA, WPA2
Give an example of each of these add-ons:
Extensions
Plug-ins
Themes
Extensions- Increase Functionality ie. menu
Plugins- Content embedded in a webpage ie. Video
Themes- Help customize ie. colors
Match the correct Windows edition to its network connection:
Work Groups; Domain; Home Edition; Enterprise/Professional Edition
Work Groups=Home Edition
Domain= Professional Edition
Describe Accelerometer and Gyroscope (hint: They're relating to touchscreen phones)
Accelerometer- tracks movements back and forth, left and right
Gyroscope- tracks orientation of screen
Describe 2 qualities of an IP Address and 2 qualities of a MAC Address
IP Address: 32 Bits, Dotted Decimal Notation; Value cannot be higher than 255
MAC Address: First 3 digits OUI (Identifies Manufacturer), Second 3 digits Device ID (Identifies NIC Card); Hexadecimal; 48 Bits
You want to select a wifi standard with speeds up to 11Mbps on a 2.4GHz Band. Is that:
802.11a
802.11b
802.11g
or 802.11n
802.11b
Explain first party cookies vs third party cookies. What do they collect?
first party cookies are owned by the site you're visiting
third party cookies are owned by another site
They collect PII
Explain how FTP (File Transfer Protocol) works
used to upload and download files to a server, it's more efficient then http.
True or False: Both IOS and Android include Full Device Encryption.
If yes, what's the difference between the two and the encryption status?
True, for Android you must enable it!!
Explain the steps in the TCP/IP Protocol
1. Application Layer- What are you sending?
2. Transport Layer- TCP/UDP
3. Internet Layer- Main Protocol Layer
4. Link or Network Interface Layer- Received on physical machine
True or False: a 2.4GHz band is better than a 5GHz band in a large house.
Explain.
True, 2.4 has less interference with walls and such.
Explain how digital certificates work
Asymmetric Encryption over HTTPS using a public and private key. The Server Identity is then guaranteed by the issuing of the Certificate Authority.
Give an example of an onsite and off site back up
onsite: HDD or SSD or NAS in the same room as your desktop
offsite: Any device away from your desktop, cloud storage
Where can you purchase apps for IOS phones? Where can you purchase apps for Android phones?
IOS: Apple Store
Android: Third party stores, download sites, Google Play (designated store)