COMPUTER
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
مندرجہ ذیل میں سے پری ایمپٹیو شیڈولنگ کے بارے میں کون سا درست ہے؟
- Edge
- Vertex
- Cycle
- Degree
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
In graph theory, a node is also called a vertex.
Vertices represent points or entities in a graph.
Edges connect vertices, showing relationships between nodes.
Cycles are paths that start and end at the same vertex.
Degree refers to the number of edges connected to a vertex.
اگر شواہد غلطی سے بدل جائیں، تو کون سا سیکیورٹی عنصر متاثر ہوتا ہے؟
- Confidentiality
- Integrity
- Privacy
- Accuracy
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Integrity ensures that data or evidence remains accurate and unaltered.
- If evidence is accidentally changed, its integrity is compromised.
- Confidentiality relates to keeping information secret, not unchanged.
- Maintaining integrity is crucial in forensics, databases, and cybersecurity.
- Tools like checksums and hashes help verify data integrity.
سیٹلائٹ امیج انالیسس میں، درج ذیل میں سے کون سا کلاسفیکیشن کی مثال ہے؟
- Measuring the angle of sunlight on a surface
- Identifying roads, buildings, and vegetation in images
- Calculating the altitude of the satellite
- Determining the orbit path
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Classification in satellite image analysis means assigning labels to different objects or areas.
Examples include roads, buildings, water bodies, and vegetation.
It helps in land use and land cover mapping.
Other options, like measuring angles or calculating altitude, are not classification tasks.
این ایل پی میں، "گریڈینٹ" سے عام طور پر کس چیز کا مطلب ہوتا ہے؟
- The slope of a curve in a decision tree
- The rate of change of loss with respect to model parameters
- The frequency of words in a text corpus
- A type of language model
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
In NLP, a gradient shows how much the loss changes when model parameters change.
It is used in training neural networks to improve predictions.
Gradients guide optimization algorithms like gradient descent.
They help the model learn by adjusting weights in the right direction.
Without gradients, deep learning models cannot improve their accuracy.
- Total packets sent over UDP
- Total segments exchanged during the connection
- Number of ICMP requests sent
- Number of hosts in the network
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
In a TCP connection, communication happens via segments.
The number of messages indicates how many segments were sent and received.
Each segment contains data and control information for reliable transmission.
This helps in monitoring connection activity and performance.
It is specific to TCP and does not apply to UDP or ICMP.
لینکس میں تمام فائلز اور ڈائریکٹریز کی فہرست دیکھنے کے لیے کون سا کمانڈ استعمال ہوتا ہے؟
- ls
- cd
- mkdir
- rm
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
The ls command in Linux is used to list all files and directories in the current location.
It can show detailed information with options like ls -l (long format) or ls -a (including hidden files).
cd is used to change directories, not list them.
mkdir creates a new directory, and rm deletes files or directories.
کون سا شیڈولنگ الگورتھم سی پی یو وقت کو پروسیس کرنے کے لیے "ٹائم کوانٹم" کا استعمال کرتا ہے؟
- Priority Scheduling
- Round Robin (RR)
- Shortest Job First (SJF)
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Round Robin (RR) is a CPU scheduling algorithm that assigns each process a fixed time slice called a time quantum.
Each process runs for the duration of the time quantum and then moves to the end of the ready queue if it isn’t finished.
It is a preemptive scheduling algorithm, meaning a process can be interrupted when its time quantum expires.
فلو چارٹ الگورتھم کی کون نمائندگی ہے؟
- Diagrammatic
- Symbolic
- Linked
- Both A & B
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
A flowchart visually represents an algorithm using diagrams and symbols.
Diagrammatic representation helps in understanding the flow of the process easily.
Symbolic representation uses standard shapes like ovals, rectangles, diamonds for start/end, processes, and decisions.
کون سا ایس ڈی ایل سی ماڈل قدم بہ قدم ترتیب وار (سیکوینشل) طریقہ اپناتا ہے؟
- Agile
- Waterfall
- Spiral
- Incremental
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
The Waterfall model is a linear and sequential SDLC model, where each phase must be completed before the next begins.
Typical phases include Requirement Analysis → Design → Implementation → Testing → Deployment → Maintenance.
It is easy to manage because of its structured approach.
Changes are difficult to implement once a phase is completed, unlike Agile.
ٹائم کمپلیکسٹی کس چیز کی پیمائش کرتی ہے؟
- Memory usage
- Speed of execution
- Code length
- Output size
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Time complexity helps developers choose efficient algorithms for faster execution.
- It helps predict performance for large datasets.
- Common notations include O(1), O(n), O(n²), etc.
- It does not measure memory usage—that is space complexity.
