Answer:
Answer explained below
Explanation:
a. A country has a capital city.------------ aggregation(city is part of country)
b. A dining philosopher uses a fork. ----------- association(philosopher and fork are different entities)
c. A file is an ordinary file or a directory file. ------- generalization( both ordinary and directory files are having attributes of files)
d. Files contain records.--------- aggregation( records are part of File)
e. A polygon is composed of an ordered set of points. ----------- aggregation( points are parts of polygon)
f. A drawing object is text, a geometrical object, or a group. --------- generalization( text and geometrical objects are drawing object)
g. A person uses a computer language on a project. -------- aggregation( person and computer language are part of project)
h. Modems and keyboards are input/output devices. -------- aggregation( Modems and keyboards both are I/O devices)
i. Classes may have several attributes.------- aggregation( attributes are part of classes)
j. A person plays for a team in a certain year. ----------- aggregation(player is part of team)
k. A route connects two cities. --------- aggregation( route consists of two cities)
l. A student takes a course from a professor. ----------- association( student and course are separate entities)
Answer:
Option B i.e., False.
Explanation:
The weakness, KRACK tricks a wifi access points to reuse an in-use encryption, enabling the intruder to decode and interpret data intended to remain encrypted. Wireless communication encrypts, that decrypt unencrypted wireless network activity and expose sensitive data.
So, the following scenario is false about the wireless attack.
Answer:
Computer network reduces the operation cost as it allows to share software and hardware in the network.
Answer:
Hi!
The correct answer is one data field and two links fields.
Explanation:
The node of a doubly-linked list contains one data field, and two links fields that references to the next node on the list and another one link field that references to the previous node in the sequence of nodes).