Which of the following is not an IoT device

• Washing Machine

• Thermostat

• Surface Pro tablet

• Security system

Two of the basic functions of an OS is to provide an interface between the user and the computer as well as interact with the system hardware and input/output

• True

• False

Which of the following is a compiled programming language

• Java

• JavaScript

• C++

• Linux

Code written in a query language, such as Structured Query Language (SQL), is designed to ______ specific records from a dataset.

Most programming languages support container types called _______ that can grow or shrink in size as elements are added or removed.

• vectors

• delimiters

• query

• array

When using POP3, the messages are usually deleted from the server when they are downloaded, though some clients have the option to leave them on the server.

• True

• False

​ (a)   supports permanent connections to a server and connecting ​ (b)   clients to the same mailbox simultaneously. It also allows a client to manage the mailbox on the server, to ​ (c)   messages in ​ (d)   and control when they are deleted for instance, and to create multiple mailboxes.

• IMAP
• multiple
• organize
• folders
• POP3
• single
• boxes

What does Internet Message Access Protocol 4 (IMAP4) allow a user to do that Post Office Protocol 3 (POP3) does not?

• Download and send attachments to other email users

• Save emails locally rather than on a central email server

• View the same email from many different devices

• Use an unlimited amount of inbox storage space

Which of the following statements best describes data persistence?

• Persistent data in a database consists of that group of rows in a table that is viewed and updated most frequently.

• Data in memory is lost once the processing is completed. Data in a database is stored persistently and securely so that it can be used again in the future.

• Data persistence refers to the length of time an item of data is stored after it is no longer of value to the user.

• Data in a database is protected by a password and persistently checked against intrusion.

Why would a flat file system not be the optimum choice for data storage for an online shopping cart application?

• Flat file systems are not used for permanent and long-term data storage.

• Flat file systems are no longer supported by most programming languages.

• A flat file system doesn't support multiple concurrent users.

• A flat file system is a more complicated file structure than a database.