Self-check 2 Part-I multiple Choice 1. What is the primary purpose of a database index? A) To reduce storage space usage B) to enforce data integrity constraints C) To maintain uniqueness of the indexed column(s) D)To create a backup of the database 2. Which type of lock is used for read operations , allowing multiple transactions to read a resource simultaneously? A) Exclusive Lock B) Write Lock C) Shared Lock D) Read Lock 3. What is a data dictionary in the context of database management? A) A dictionary containing words and their meanings B) A collection of descriptions of data objects in a database C) A tool for spell-checking in databases D) A data backup file Part-II Give short answer 1. Why is it crucial to regularly verify the integrity of database backups? 2. Briefly explain the importance of backup verification and retrieval in data management. 3. What are some key steps in monitoring and resizing storage resources in a database system?
What is the best way to determine if a CPU fan is spinning properly? Listen for the sound of the fan spinning when the power is on. Visually inspect the fan when the power is on to ensure it is spinning. Spray compressed air on the fan to make the blades spin. Spin the blades of the fan quickly with a finger.
An employee reports that the antivirus software cannot obtain updates. The support technician notices that the license for the software has expired. The technician adds a new license to the software and completes the update service. What should the technician do next? Record the new ficense number in the log. Run a full virus scan on the computer. Download advanced antivirus software from another vendor. Review the Event Viewer for the date and time that the last software update was performed.
Which tools can be used to rotate a design at any angle?(Choose 2). 0000 Orbit View Cube Zoom Pan
What are the two main objectives associated with data mining? Uncovering Tactics and Plans. Uncovering Trends and Patterns. Uncovering Intelligence and Unstructured Data Issues. Uncovering Competitors and Market Advantages.
We used a built-in Unity function to check if a collider had intersected with a specific Unity layer. Which choice below is the correct function?
What are the four levels of classification? C Unclassified, Restricted Confidential, Top Secret Basic, Intermediate Advanced, Expert Public, Private, Protected Secure C Restricted, Confidential Internal, Public
Question 15 (5 points) The __ command gives owner read, write and execute permissions; gives group only execute permissions and others read and execute permissions. chmod 755 chmod 175 chmod 751 chmod 517 chmod 715
Functionally, how does jailbreaking an Apple device allow the user to accomplish things they couldn't on a device that wasn't jailbroken? C by providing root access by deleting the OS by changing the hardware by skipping OS layer 6
Windows computers contact their DNS server at boot time to create or update their host resource records. This feature is called zone transfer. a. True b. False
What is the maximum resolution that an HDM 2.1 can support? 720P 1080P 4K 8K
Which of the following is true of single mode fiber? It has a larger core. It is an older technology. It is more common and used for running Internet to homes.
Where is the best place for you to find information about the features and functions of a program you are using? the Start menu the toolbar the Desktop the application's Help menu
For the entity PERSON the attribute SSN is an example of a duplicated values attribute. True False
Winnie is deciding whether to collect her forensic data in an open source or proprietary format.There are advantages and disadvantages to both, but she wants her data read by as many forensic tools as possible. Which format should Winnie use to achieve her objective? Evidence format Single format Raw format Proprietary format
For HIE and data analytics, __ Structured data has many advantages Unstructured data has many advantages Decreased use of mobile devices has many advantages Decreased use of patient portals has many advantages
Suppose one has a pushdown automaton M with two stacks.. Which of the following is true? A two stack machine is much more efficient than a Turing machine Adding a third stack will further increase the power of the machine. Popping the value off of one stack and pushing on the other is the equivalent of a tape move on a Turing machine The second I stack does not add any capability
Intelligent transportation systems use GPS to __ Select all that apply. A. accept fare payments B. prevent "bunching" C. count passengers D. communicate current position and speed to other vehicles
A virtual image is only found on the internet. True False
A single-value attribute has exactly a value for any given entity instance. True False
