State true or false: Servlets are used to generate dynamic responses to HTTP requests.

What is the difference between servlets and applets? i. Servlets execute on Server; Applets execute on browser ii. Servlets have no GUI; Applet has GUI iii. Servlets creates static web pages; Applets creates dynamic web pages iv. Servlets can handle only a single request; Applet can handle multiple requests

A

i, ii, iii are correct

B

i, ii are correct

C

i, iii are correct

D

i, ii, iii, iv are correct

What is the difference between servlets and applets?
i. Servlets execute on Server; Applets execute on browser
ii. Servlets have no GUI; Applet has GUI
iii. Servlets creates static web pages; Applets creates dynamic web pages
iv. Servlets can handle only a single request; Applet can handle multiple requests

A

i, ii, iii are correct

B

i, ii are correct

C

i, iii are correct

D

i, ii, iii, iv are correct

An operating system uses the Banker’s algorithm for deadlock avoidance when managing the allocation of three resource types X, Y, and Z to three processes P0, P1, and P2. The table given below presents the current system state. Here, the Allocation matrix shows the current number of resources of each type allocated to each process and the Max matrix shows the maximum number of resources of each type required by each process during its execution. Allocation Max X Y Z X Y Z P0 0 0 1 8 4 3 P1 3 2 0 6 2 0 P2 2 1 1 3 3 3 There are 3 units of type X, 2 units of type Y and 2 units of type Z still available. The system is currently in a safe state. Consider the following independent requests for additional resources in the current state: REQ1: P0 requests 0 units of X, 0 units of Y and 2 units of Z REQ2: P1 requests 2 units of X, 0 units of Y and 0 units of Z Which one of the following is TRUE?

A

Only REQ1 can be permitted

B

Only REQ2 can be permitted.

C

Both REQ1 and REQ2 can be permitted

D

Neither REQ1 nor REQ2 can be permitted

Two processes X and Y need to access a critical section. Consider the following synchronization construct used by both the processes Process ? /* other code for process ? */ while(true) { varP = true; while(varQ == true) { /* Critical Section */ varP = false; } } /* other code for process ?? */ Process ? /* other code for process ? */ while(true) { varQ = true; while(varP == true) { /* Critical Section */ varQ = false; } } /* other code for process ? */ Here, varP and varQ are shared variables and both are initialized to false. Which one of the following statements is true?

A

The proposed solution prevents deadlock but fails to guarantee mutual exclusion

B

The proposed solution guarantees mutual exclusion but fails to prevent deadlock

C

The proposed solution guarantees mutual exclusion and prevents deadlock

D

The proposed solution fails to prevent deadlock and fails to guarantee mutual exclusion

Determine the corrections or otherwise of the following assertion and reason : Assertion : To generate new airfoil, we use spanwise line instead of chord line in flat wrap interpolation technique. Reason: Chordwise line will generate flat structure from curves having different values of tangent angle. and are true and is the correct reason for b) Both and are true but is not the correct reason for c) Both and are false d) is true but is false

A

and reason : Assertion : To generate new airfoil, we use spanwise line instead of chord line in flat wrap interpolation technique. Reason: Chordwise line will generate flat structure from curves having different values of tangent angle. ] Both and are true and is the correct reason for

B

A

C

A

D

A

Consider the following statements.
1. All valid arguments contain only true premises and a true conclusion.
2. Some valid arguments contain only false propositions - false premises and a true conclusion.
3. All valid arguments contain only false propositions all premises are false, conclusion is false as well.
Which of the above statements is correct?

A

Only 1

B

Only 1

C

Only 3

D

None of these

Identify the correct order in which the following actions take place in an interaction between a web browser and a web server. 1. The web browser requests a webpage using HTTP. 2. The web browser establishes a TCP connection with the web server. 3. The web server sends the requested webpage using HTTP. 4. The web browser resolves the domain name using DNS.

A

4, 2, 1, 3

B

1, 2, 3, 4

C

4, 1, 2, 3

D

2, 4, 1, 3

What are the characteristics of fully distributed approach? i) When responses are received from all processes, then process can enter its Critical Section ii) When process exits its critical section, the process sends reply messages to all its deferred requests. iii) It requires request,reply and release per critical section entry iv) One processor as coordinator which handles all requests

A

i

B

i and ii

C

ii and iii

D

iii and iv

Consider the following statements comparing static RAM with dynamic RAM: In static RAM typical cell requires more number of transistors than the dynamic RAM. Power consumption per bit of static RAM is less than that of dynamic RAM. Dynamic RAM is less expensive than the static RAM. Which of the above statements are correct?

A

1, 2 and 3

B

1 and 2 only

C

2 and 3 only

D

1 and 3 only

How is the dynamic interception of requests and responses to transform the information done?

A

servlet container

B

servlet config

C

servlet context

D

servlet filter

State true or false: Servlets are used to generate dynamic responses to HTTP requests.

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