Year 7 Unit 7.3 (Part 3)

Unit 7.3 : Accessing the Internet (Part 3)

Multiple Choice

What does SSL certificate stands for?

• Secured Socket Layer certificate

• Security Socket Layer certificate

• Secure Sockets Layer certificate

• Secure Socks Layers

Keeping It All Secure

• Encryption allows devices to send messages to each other securely.

• The encrypted data can still be intercepted but cannot be understood since they are scrambled.

• Can only be decrypted (unscrambled) using a special key.

Multiple Choice

Amount of data that can be transmitted within certain amount of time is called

• bluetooth

• data logger

• bandwidth

• transmission period

Multiple Choice

What does encryption means?

• erasing data

• scambling eggs

• unscrambling data

• scrambling data

Encryption Algorithm

• Method used to transform data into ciphertext

• Caesar cipher works by shifting alphabet along

  by a specific number of places.

• Table above is shift of two

Multiple Choice

Can you use the Caesar cipher table given to find out what does EYE SEE TEA translates to?

• CWC QCC RCZ

• CXC QCC RCY

• CWC OCC RCY

• CWC QCC RCY

Encryption Algorithm

• Simple substitution cipher shifts letters at

  random

• to decode it, user need to know the full character

  list

• For example : If the plaintext is HELLO, the encrypted will be PBOOR

Multiple Choice

Bandwidth, transmission distance, security and interference are all part of characteristics of _. We used this to differentiate wifi, bluetooth and cellular data.

• transaction methods

• transmission methods

• transition method

• traditional method

Sending Messages

• Computer communicate with each other using binary code.

• These binary codes can be corrupted or interfered with, which will cause errors.

• Some common reasons of errors are :

  • power surges

  • broken or damaged cables

  • electrical interference

  • hacking

• For example : If the plaintext is HELLO, the encrypted will be PBOOR

Multiple Choice

What is used to easily remember website names?

• ip address

• web names

• the webs

• domain names

AI and reverse image searches

• Using AI, you can search for pictures using image recognition technology.

• The image being search will be compared with billions of other images in database.

• The computer looks at distinctive points, colors, lines and textures.

• When similar images are found in the database, these are returned to the user.

Multiple Choice

what does insecure website means?

• The website is dealing with insecurity issues

• website doesn't use HTTPS with an SSL certificate

• website have HTTPS with SSL certificate

• website have been hacked

AI and reverse image searches

• Using AI, you can search for pictures using image recognition technology.

• The image being search will be compared with billions of other images in database.

• The computer looks at distinctive points, colors, lines and textures.

• When similar images are found in the database, these are returned to the user.

Multiple Choice

Can you use the Caesar cipher table given to find out what does YEAR SEVEN translates to?

• WCYP PCTCP

• CXCQ CCRCY

• WCYP QCTCL

• CWC QCC RCY

AI and reverse image searches

Multiple Choice

What does cyphertext mean?

• encrypted text from encryption logarithms

• encrypted text from encryption algorithm

• decrypted text that can be read easily

• coding language

Multiple Choice

What does cyphertext mean?

• encrypted text from encryption logarithms

• encrypted text from encryption algorithm

• decrypted text that can be read easily

• coding language