RRB Technician Grade I (Signal) 2024, 2025 PYQs

Concept: Full forms of memory technologies.

1. DDR SDRAM = Double Data Rate Synchronous Dynamic Random Access Memory.
2. "Synchronous" means the memory works in step with the system clock; "Double Data Rate" means data is transferred on both the rising and falling edges of the clock, doubling the bandwidth of ordinary SDRAM.
3. Options with "Systematic" or "Dynamic Data Rate" are not real terms.

Yaad rakhein: SDRAM = Synchronous DRAM; DDR = Double Data Rate (data on both clock edges). Versions: DDR, DDR2, DDR3, DDR4, DDR5.

Answer: (C) Double Data Rate Synchronous Dynamic Random Access Memory

Concept: Classifying common applications by their purpose.

1. WhatsApp and Telegram are instant-messaging apps used mainly for chat, voice/video calls and file sharing.
2. Firefox, Chrome and Safari are web browsers; MS Word is a word processor; Gmail is e-mail (communication, but it is paired with a browser in option A).
3. Only option B has two messaging apps together.

Yaad rakhein: Browsers – Chrome, Firefox, Safari, Edge; Messaging – WhatsApp, Telegram, Signal, Messenger.

Answer: (B) WhatsApp and Telegram

Concept: Viruses are classified by how they infect and spread.

1. A macro virus is written in the macro language of applications such as MS Word or Excel; it hides inside documents/spreadsheets and runs when the file is opened (e.g. Melissa virus).
2. Polymorphic virus – changes its code to avoid detection; Resident virus – stays in RAM; Network virus – spreads through network connections.

Yaad rakhein: "Macro" = document automation in Office → Macro virus = spreads through Word/Excel documents.

Answer: (D) Macro Virus

Concept: System software (operating systems, drivers, utilities) manages the hardware; application software performs user tasks.

1. Windows Vista is an operating system released by Microsoft in 2007 → system software.
2. Google Chrome (browser), Adobe Photoshop (image editing) and WhatsApp (messaging) are all application software.

Yaad rakhein: Anything named Windows/Linux/macOS/Android = OS = system software, not an application.

Answer: (A) Windows Vista

Concept: Layout of the Windows desktop.

1. The Start Menu button sits at the bottom-left corner of the taskbar (Windows XP, 7, 8, 10); it opens the list of programs, settings and power options.
2. Notification Center (Action Center) is at the bottom-right; Recycle Bin is usually at the top-left of the desktop; Quick Access Toolbar belongs to MS Office/File Explorer windows, not the desktop.
3. In Windows 11 the Start button is centred by default, but can be moved back to the left.

Yaad rakhein: Bottom-left = Start, bottom-right = clock + notifications, top-left = Recycle Bin.

Answer: (B) Start Menu

Concept: Standard desktop icons in Windows and their functions.

1. This PC (formerly "My Computer") opens File Explorer showing all storage drives (C:, D:, USB, DVD), network locations and folders such as Documents, Downloads, Pictures.
2. Right-clicking This PC → Properties shows system information (Windows edition, processor, RAM, device name).
3. It is not an application launcher (that is the Start menu), not an update store, and not a Control Panel shortcut.

Yaad rakhein: This PC = My Computer = window to drives, files and system properties.

Answer: (C) Access to drives, files and system properties

Concept: PowerPoint offers different views for different tasks.

1. Slide Show view (F5 from the start, Shift+F5 from the current slide) displays slides full-screen one after another – this is the view used to present/run the show.
2. Normal view – for editing slides; Slide Sorter view – thumbnails for reordering; Notes Page view – slide with speaker notes for printing.

Yaad rakhein: Edit → Normal; Arrange → Slide Sorter; Present → Slide Show (F5).

Answer: (C) Slide Show View

Concept: Sorting in Excel is done through the Data tab.

1. Select the data range → Data tab → Sort → choose the column (Sort by), Sort On (values) and Order (A to Z / Z to A, Smallest to Largest etc.) → OK. This is the complete, standard method and allows multi-level sorting.
2. Quick buttons "Sort A→Z" / "Sort Z→A" also exist on the Data tab and in the Home → Editing → Sort & Filter menu, but the Format menu has no Sort command, and the right-click menu sorts only by a single column.
3. Option B is the full procedure with criteria and order specified.

Yaad rakhein: Sort and Filter live on the Data tab (Data → Sort & Filter group).

Answer: (B) By selecting the data range, then choosing 'Sort' from the Data menu and specifying the sorting criteria and order

Concept: Every Office application has a modern XML-based format (extension ending in x) and an older 97-2003 binary format.

1. PowerPoint 2007 onwards saves presentations as .pptx.
2. The 'PowerPoint 97-2003 Presentation' option saves as .ppt.
3. .docx/.doc belong to Word and .odp is the OpenDocument presentation format, not a PowerPoint native format.

Trick: Word → doc/docx, Excel → xls/xlsx, PowerPoint → ppt/pptx; the 'x' means the newer XML format.

Answer: (B) (.pptx), (.ppt)

Concept: Shift + F3 cycles the selected text through lowercase → UPPERCASE → Capitalize Each Word.

1. Pressing Shift + F3 repeatedly is the quickest way to change case.
2. Home tab → Change Case (Aa) also works but needs more clicks; the question asks for the quick way.
3. Right-click → Font opens formatting, not a direct case switch; retyping is the slowest.

Yaad rakhein: F3 with Shift = 'flip the case'.

Answer: (A) Use the keyboard shortcut 'Shift + F3'

Concept: Ctrl + P (Windows) / Cmd + P (Mac) opens the Print dialog in almost every application, including Chrome, Edge and Firefox.

1. Ctrl + P = Print; Ctrl + S = Save page; F12 = Developer tools.
2. Right-click → 'Save As' stores the page as a file, it does not print.

Yaad rakhein: P for Print, S for Save.

Answer: (A) Pressing Ctrl + P (Windows) or Cmd + P (Mac)

Concept: IF is a logical function: =IF(condition, value_if_true, value_if_false).

1. Example: =IF(A1>=40,"Pass","Fail") returns Pass when the condition is true, otherwise Fail.
2. Sorting and filtering are Data-tab commands, and adding is done by SUM, not IF.

Yaad rakhein: IF = test → true result / false result.

Answer: (C) It checks a condition and returns one value if true and another if false.

Concept: In the browser's print dialog, 'Margins' sets the blank space between the printed content and the paper edges (Default, None, Minimum, Custom).

1. Number of pages is shown separately as 'Pages/Sheets'; font size and colours are controlled by 'Scale' and 'Background graphics', not by Margins.

Yaad rakhein: Margin = border gap of the page.

Answer: (A) The space between the content and the edges of the printed page

Concept: NTFS (Windows) supports two kinds of links: hard links (several file names pointing to the same file data on one volume) and junctions (directory links that redirect a folder path to another local folder).

1. Hard links are made with mklink /H, junctions with mklink /J.
2. 'Direct linking' is not an NTFS term; 'soft link' is the Unix name for a symbolic link.

Yaad rakhein: NTFS → Hard links + Junctions (H and J).

Answer: (C) hard links and junctions

Concept: Ctrl + B (bold), Ctrl + I (italic) and Ctrl + U (underline) change the formatting of selected text.

1. Ctrl + S saves the document – a file operation, not text formatting.

Yaad rakhein: B-I-U = Bold-Italic-Underline; S = Save.

Answer: (B) Ctrl + S

Concept: The Font Color button (the 'A' with a coloured bar) has a small arrow; clicking it opens a drop-down palette of Theme Colors, Standard Colors and More Colors.

1. Clicking the main 'A' part applies the last-used colour; the arrow shows the list – the question refers to the colour chooser.
2. Background colour is 'Text Highlight Color' / Shading; the Font dialog box opens with Ctrl + D.

Yaad rakhein: Font Color → palette drop-down; Highlight → background.

Answer: (D) It opens a drop-down list of colors to choose from.

Concept: A series (1, 2, 3… or Jan, Feb… or a custom list) is created by typing the first value(s), selecting them and dragging the Fill Handle (small square at the cell's bottom-right corner).

1. Custom lists are defined in File → Options → Advanced → Edit Custom Lists, then filled by dragging the Fill Handle.
2. Data Validation restricts entries, Conditional Formatting colours cells, Sort & Filter arranges data – none generate a series.

Yaad rakhein: Fill Handle = AutoFill = series.

Answer: (D) Using the Fill Handle and dragging

Concept: In Outlook's message window, Style Sets are listed under Change Styles → Style Set in the Styles group, not under the Styles Dialog Box Launcher.

1. Statements A (Change Styles → Colors/Fonts), B (Style Inspector at the bottom of the Styles pane) and C (live preview on hovering) are correct Microsoft procedures.
2. Statement D is false: the Dialog Box Launcher opens the Styles pane for individual styles; the list of style sets is under Change Styles.

Yaad rakhein: Style Set → Change Styles button; Styles pane → individual styles.

Answer: (D) After you select a Style, you can see a list of the style sets available within the styles…

Concept: A file infector virus attaches its code to executable files (.exe, .com) and runs – and spreads – whenever the infected program is executed.

1. Macro virus: hides in Office document macros. Boot sector virus: infects the disk's boot record and loads at start-up.
2. Polymorphic virus: changes its code each time to evade antivirus – a disguise technique, not a target type.

Yaad rakhein: 'File infector' – the name says what it infects.

Answer: (D) File Infector Virus

Concept: A LAN covers a small area (office, campus) and offers high speed (100 Mbps–10 Gbps) – that is an advantage.

1. Disadvantages: high initial cost of cabling, switches and servers; limited geographical size; security risk if the central server is compromised.
2. High data transmission rate is a benefit, so B is NOT a disadvantage.

Yaad rakhein: LAN = fast + cheap to run, but costly to set up and small in reach.

Answer: (B) It has high data transmission rates.