[Computer Network MCQS ]
झारखंड में आयोजित होने वाली JPSC, JSSC, JET, झारखंड पुलिस भर्ती परीक्षा आदि के लिए उपयोगी सामान्य अध्ययन।
Computer Network Topics:-
Network Basics, Types of Networks (LAN, MAN, WAN, PAN), Network Topologies, OSI Reference Model, TCP/IP Model, Physical Layer, Data Link Layer, Ethernet Technology, Switching Techniques, Network Layer, IPv4 Addressing, IPv6 Addressing, Subnetting, Supernetting, Routing Concepts, RIP (Routing Information Protocol), OSPF (Open Shortest Path First), BGP (Border Gateway Protocol), ARP and RARP, ICMP, DHCP, DNS, NAT, Transport Layer, TCP (Transmission Control Protocol), UDP (User Datagram Protocol), FTP and TFTP, HTTP and HTTPS, SMTP, POP3 and IMAP, Telnet and SSH, SNMP, NTP, Wireless Networks, Wi-Fi (IEEE 802.11), Bluetooth, VPN (Virtual Private Network), Firewall, IDS and IPS, SSL/TLS, IPsec, Cryptography, Network Security, Cloud Networking, Mobile Networking, Advanced Networking[ Computer Network MCQS ]
Useful GK for JPSC, JSSC, JET, Jharkhand Police and other exams.
271. FTP का Default Port Number क्या है?
[A] 20 and 21
[B] 23 and 24
[C] 25 and 26
[D] 80 and 81
271. What is the default port number of FTP?
[A] 20 and 21
[B] 23 and 24
[C] 25 and 26
[D] 80 and 81
सही उत्तर: 20 and 21
व्याख्या: FTP Data Transfer के लिए Port 20 तथा Control Connection के लिए Port 21 का उपयोग करता है।
Correct Answer: 20 and 21
Explanation: FTP uses port 20 for data transfer and port 21 for control connection.
272. HTTP का Default Port Number क्या है?
[A] 21
[B] 23
[C] 80
[D] 443
272. What is the default port number of HTTP?
[A] 21
[B] 23
[C] 80
[D] 443
सही उत्तर: 80
व्याख्या: HTTP Web Communication के लिए Port 80 का उपयोग करता है।
Correct Answer: 80
Explanation: HTTP uses port 80 by default.
273. HTTPS का Default Port Number क्या है?
[A] 80
[B] 21
[C] 443
[D] 110
273. What is the default port number of HTTPS?
[A] 80
[B] 21
[C] 443
[D] 110
सही उत्तर: 443
व्याख्या: HTTPS Secure Web Communication के लिए Port 443 का उपयोग करता है।
Correct Answer: 443
Explanation: HTTPS uses port 443 by default.
274. Telnet का Default Port Number क्या है?
[A] 21
[B] 22
[C] 23
[D] 25
274. What is the default port number of Telnet?
[A] 21
[B] 22
[C] 23
[D] 25
सही उत्तर: 23
व्याख्या: Telnet Remote Login के लिए Port 23 का उपयोग करता है।
Correct Answer: 23
Explanation: Telnet uses port 23 by default.
275. SSH का Default Port Number क्या है?
[A] 21
[B] 22
[C] 23
[D] 25
275. What is the default port number of SSH?
[A] 21
[B] 22
[C] 23
[D] 25
सही उत्तर: 22
व्याख्या: SSH Secure Remote Login के लिए Port 22 का उपयोग करता है।
Correct Answer: 22
Explanation: SSH uses port 22 by default.
276. SMTP का Default Port Number क्या है?
[A] 25
[B] 53
[C] 80
[D] 110
276. What is the default port number of SMTP?
[A] 25
[B] 53
[C] 80
[D] 110
सही उत्तर: 25
व्याख्या: SMTP Email Sending के लिए Port 25 का उपयोग करता है।
Correct Answer: 25
Explanation: SMTP uses port 25 by default.
277. POP3 का Default Port Number क्या है?
[A] 25
[B] 53
[C] 110
[D] 143
277. What is the default port number of POP3?
[A] 25
[B] 53
[C] 110
[D] 143
सही उत्तर: 110
व्याख्या: POP3 Email प्राप्त करने के लिए Port 110 का उपयोग करता है।
Correct Answer: 110
Explanation: POP3 uses port 110 by default.
278. IMAP का Default Port Number क्या है?
[A] 143
[B] 110
[C] 25
[D] 53
278. What is the default port number of IMAP?
[A] 143
[B] 110
[C] 25
[D] 53
सही उत्तर: 143
व्याख्या: IMAP Email Management के लिए Port 143 का उपयोग करता है।
Correct Answer: 143
Explanation: IMAP uses port 143 by default.
279. DNS सामान्यतः किस Port का उपयोग करता है?
[A] 21
[B] 25
[C] 53
[D] 80
279. Which port is commonly used by DNS?
[A] 21
[B] 25
[C] 53
[D] 80
सही उत्तर: 53
व्याख्या: DNS Domain Name Resolution के लिए Port 53 का उपयोग करता है।
Correct Answer: 53
Explanation: DNS commonly uses port 53.
280. OSI Model में Error Detection मुख्यतः किस Layer का कार्य है?
[A] Application Layer
[B] Transport Layer
[C] Data Link Layer
[D] Session Layer
280. In the OSI model, error detection is primarily performed by which layer?
[A] Application Layer
[B] Transport Layer
[C] Data Link Layer
[D] Session Layer
सही उत्तर: Data Link Layer
व्याख्या: Data Link Layer Frame Error Detection का कार्य करती है।
Correct Answer: Data Link Layer
Explanation: The Data Link Layer is responsible for frame error detection.