A function you can perform on a word processor BUT NOT on a typewriter is editing.
Answer:
False
Explanation:
Access Control Lists (ACLs) are network filters used by routers and some switches to permit and restrict data flows in and out of network devices. When an ACL is implemented in a device or interface, the network device analyses data passing through it, compares it to the specification described in the ACL, and allows it the data to flow or prohibits it. One of the main reasons ACLs arre used is to provide a basic level of security for networks. If anything, the use of ACLs and their complexities bring about a delay in transmission through networks.
<span>A linear bus topology uses a common background cable to connect all network devices.</span>
Explanation:
Both Primary Key and Candidate Key are the attributes that are used to access tuples from a table. These (Primary key and Candidate key) are also can be used to create a relationship between two tables.
- A Candidate Key can be any column or a combination of columns that can qualify as a unique key in the database. Each Candidate Key can qualify as a Primary Key.
- A Primary Key is a column or a combination of columns that uniquely identify a record. The primary key is a minimal super key, so there is one and only one primary key in any relationship.
<em> The main difference between them is that a primary key is unique but there can be many candidate keys. </em>
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