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Computer Fundamentals → Introduction to Computer 40

The resolution of a standard Full HD display is?
1920×1080
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4K resolution refers to approximately?
Both B and C
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Refresh rate of 60 Hz means?
Screen refreshes 60 times per second
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Which of the following stores the currently executing program?
RAM
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The extension of a Python source file is?
.py
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Which programming concept prevents code duplication?
Inheritance and functions
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A null pointer points to?
Address 0 or no valid address
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Which of these is a compiled language?
C/C++
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Which is an interpreted language?
Python
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The OSI model has how many layers?
7
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Which OSI layer handles routing?
Layer 3
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TCP/IP model has how many layers?
4
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Which device works at Data Link Layer (Layer 2)?
Switch
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MAC address has how many bytes?
6
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ARP stands for?
Address Resolution Protocol
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ICMP is used for?
Network diagnostics (ping)
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Which is a private IP address range?
192.168.0.0/16
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NAT stands for?
Network Address Translation
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Which port does FTP use for control?
21
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Telnet uses which port?
23
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Which protocol sends network time?
NTP
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The loopback IP address is?
127.0.0.1
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What is the broadcast address for network 192.168.1.0/24?
192.168.1.255
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Subnet mask 255.255.255.0 means?
24 network bits
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Wi-Fi 6 is also known as?
802.11ax
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Bluetooth is defined by which IEEE standard?
802.15
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Which topology is used in Ethernet LANs?
Star or Bus
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Fiber optic cable transmits data using?
Light pulses
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Which cable type is immune to electromagnetic interference?
Fiber optic
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UTP stands for?
Unshielded Twisted Pair
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Cat6 cable supports speeds up to?
10 Gbps
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Full duplex communication means?
Both directions simultaneously
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Half duplex allows?
One direction at a time
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The maximum data rate of USB 3.0 is?
5 Gbps
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Which interface connects modern displays at high speeds?
DisplayPort/HDMI 2.1
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PCIe x16 slot is primarily used for?
GPU/Graphics cards
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Which technology allows multiple VMs on one physical machine?
Virtualization
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A hypervisor is?
Software that creates and manages VMs
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Type 1 hypervisor runs?
Directly on hardware (bare metal)
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Which of the following is a Type 2 hypervisor?
VirtualBox
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