1. Under the user location. scenario, all record- and file-locking activities are performed at the end- A. single-site processing, single-site data B. multiple-site processing, single-site data C. single-site processing, multiple-site data D. multiple-site processing, multiple-site data 2. A DDBMS is subject to which restriction? A. Multiple instances of the same database should be integrated over a network B. All database processing must be done at a single site C. Rapid ad hoc data access is not possible D. Remote data access is provided on a read-only basis 3. A distributed database administrator. contains the description of the entire database as seen by the

Q: Use the following confusion matrices to answer Questions 4 – 13. Please note that some of the…

A: Highest Recall Rate (also known as Sensitivity or True Positive Rate): Recall rate measures the…

Q: Below is a table description and its data. The table is not in Third Normal Form (3NF). Explain why.…

A: Third normal form: A relation is said to be in third normal form only if the relation is already in…

Q: What are the coefficient of the term a32 b10 in the expansion (a + b)42 C(10, 32) С32, 10) C(42, 10)…

A: So the answer is option C(32, 42)

Q: Q4 Convert the following NFA to DFA. ४

A: We need too convert the given DFA to NFA.

Q: Give any one other term used for: (a) Input variable (b) Target variable (c) Attribute (d) Row

A: Solution:-

Q: Based on the inference rules, the following statement is If {pnumber} -> {pname}, then {pnumber,…

A: Answer is True

Q: (4) Consider the following two relations in a database: CUSTOMERS: customer_id last_name first_name…

A: Answer: Answer a: customer_id order_id order_date 4000 4 2016/04/20 5000 2 2016/04/18 7000…

Q: ou will produce a query result set of Products that have a P_PRICE (Price) that is greater than the…

A: The given problem is to be solved in SQL where the Products table have an attribute named P_PRICE.…

Q: select id_room, type of room, max (price) from room how to change it into relational algebra

A: A procedural query language used to apply operations on relations is called relational algebra. It…

Q: The following query needs some consideration: "What does this statement mean?" Can you please let me…

A: Software design: Software design is the process by which an agent generates a specification of a…

Types of database architectures

A Database Architecture represents the Database Management System’s (DBMS) design (schema). The DBMS architecture makes it easy to understand the components involved in the database system and their relations. The DBMS architecture may vary based on the system on which it runs. Some systems contain both client and server machines whereas some run only on a server machine. Based on the architecture, the system can be classified as centralized, decentralized, or hierarchical.