Match each item with a statement below.
A. provides interfaces that enable software to request and receive network services
B. responsible for managing access to the network medium and delivery of data frames
C. manages centralized access and security in a server-based network
D. a computer running Windows Server with Active Directory installed
E. the process of adding header and trailer information to chunks of data
F. a packet is addressed so that more than one destination can receive it
G. handles logical addressing and routing of PDUs across internetworks
H. transmits and receives signals and specifies the physical details of cables
I. a chunk of data with source and destination IP addresses
J. responsible for setting up, maintaining, and ending communication sequences
A. Application layer
B. Data Link layer
C. directory service
D. domain controller
E. encapsulation
F. multicasting
G. Network layer
H. Physical layer
I. packet
J. Session layer
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Which of the following creates the string of the numbers from 1 to 1000 most efficiently?
a. ``` String s; for (int i = 1; i <= 1000; i++) s += i; ``` b. ``` StringBuilder sb = new StringBuilder(10); for (int i = 1; i <= 1000; i++) sb.append(i); String s = new String(sb); ``` c. ``` StringBuilder sb = new StringBuilder(3000); for (int i = 1; i <= 1000; i++) sb.append(i); String s = new String(sb); ``` d. All are equivalently efficient.
Critical Thinking QuestionsCase 8-2You and two classmates are participating as a team in a team-based Web design contest at your school. The winning team gets to create the Web site for a local charity. You are all excited to get started!A list of Web site criteria was provided to contest participants by the charity. Near the top of the list is a request for a way to highlight a calendar of charitable events on the site's home page. Because the events calendar will change each month, you suggest that the team include ____ on the home page to focus visitors' attention on the calendar and to make it easier to update the calendar each month. a. a sidebar elementc. a calendar image mapb. drop cap style formatting for the first character of each paragraphd. a background image of a calendar
What will be an ideal response?
Which of the following is NOT a primary function of an operating system?
A) Managing document formatting options B) Communicating with application software C) Managing system resources D) Checking computer components
In the past assembly language was popular, but then an entire group of new languages emerged to make programming easier, including BASIC, FORTRAN , Pascal, and COBOL.
Answer the following statement true (T) or false (F)