CompTIA A+ 220-1101 Practice Questions | TCP/UDP Ports and Protocols
10.2 هزار بار بازدید -
12 ماه پیش
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Welcome to the Tech Vault
Welcome to the Tech Vault Academy's CompTIA A+ Core 220-1101 practice questions series! In this video, we dive deep into TCP and UDP Ports and Protocols, crucial knowledge for any aspiring IT professional or networking enthusiast. With 30 engaging practice questions, you'll challenge your understanding and reinforce your skills in no time.
🔥 Prepare for the CompTIA A+ exam or expand your networking knowledge with our expertly crafted questions and detailed explanations.
🎯 Topics Covered:
Secure Remote Access (SSH, Telnet)
Secure Email Communication (SSL/TLS, IMAP)
Web Server Access (HTTP)
File Transfer (FTP)
Mail Server (SMTP)
Troubleshooting NetBIOS Name Resolution
Network Device Management (TCP vs. UDP)
Remote Desktop Access (RDP)
File Server (CIFS)
Encrypted Remote Management (SSH)
👉 If you missed the previous videos in this series, find the playlist link below:
COMPTIA A+ 220-1101
Dive into this comprehensive TCP/UDP Ports and Protocols review and elevate your networking skills today!
0:00 Introduction
0:24 ] Our first question is all about securely transferring files between two Linux servers. Imagine you're a system administrator, and you need to do this task efficiently. Which protocol and port should be allowed in the firewall? A TCP 22
0:52 ] To securely transfer files between two Linux servers, you should use TCP 22 (A). This port is used by the Secure Shell (SSH) protocol, providing a secure channel for transferring files between servers. It's the perfect choice for maintaining confidentiality and integrity during file transfers. The other options wouldn't suit this task: UDP 53 (B) is used for Domain Name System (DNS) queries, not file transfers. TCP 389 (C) is used for Lightweight Directory Access Protocol (LDAP) connections, not file transfers. UDP 67 (D) is used for Dynamic Host Configuration Protocol
1:39 ] Moving on to question number two! A technician is troubleshooting connectivity issues accessing a web server. Which port needs to be open to allow access to the web server? A 25
2:42 ] Now let's dive into file and print sharing! Users report slowness accessing files on a file server. Which ports use TCP for file and print sharing? A 135-139
3:09 ] For file and print sharing using TCP, you should use ports 135-139 (A) and 445 (D). These ports are associated with Server Message Block (SMB) communication, which is a protocol used for file and printer sharing on Windows networks. The other options aren't quite right: Ports 161-162 (B) are used for Simple Network Management Protocol (SNMP) communication, not file and print sharing. Port 389 (C) is used for LDAP connections, not file and print sharing.
3:49 ] Our fourth question delves into central authentication using LDAP. A company wants to implement it, but which TCP port should be open on the LDAP server? A 389
4:15 ] To implement central authentication using LDAP, you should open TCP port 389 (A) on the LDAP server. LDAP is a protocol used for accessing and managing directory services, and it typically uses TCP port 389 for communication. The other options don't fit the bill: Port 443 (B) is used for HTTPS communication, not LDAP. Port 3389 (C) is used for Remote Desktop Protocol (RDP) communication, not LDAP. Port 8080 (D) is often used as an alternative HTTP port, not for LDAP.
5:28 ] To allow DHCP traffic on a network, you should permit UDP 67 (C) for the DHCP server and UDP 68 (D) for the DHCP client. DHCP is a protocol used for automatically assigning IP addresses and other communication parameters to devices connected to a network. It uses a connectionless service model and relies on the User Datagram Protocol (UDP) for communication. The other options aren't correct: TCP 67 (A) and TCP 68 (B) are not used for DHCP communication.
6:36 ] To forward DNS queries to the ISP's DNS servers, a SOHO router needs to configure UDP port 53 (B). DNS is a protocol used to
7:19 ] Now let's talk secure network management! A network administrator needs to manage routers securely from a central location. Which protocol should be enabled? A DHCP
7:44 ] To manage routers securely from a central location, you should enable the SSH protocol (D). SSH is a secure protocol used for remote management of network devices, providing encrypted communication between the administrator and the device. The other options aren't suitable for this task: DHCP (A) is used for automatically assigning IP addresses, not for secure network management. HTTPS (B) is used for secure web communication, not for managing routers. SNMP (C) is used for monitoring and managing network devices but doesn't offer the same level of security as SSH.
#techcertification #comptia
🔥 Prepare for the CompTIA A+ exam or expand your networking knowledge with our expertly crafted questions and detailed explanations.
🎯 Topics Covered:
Secure Remote Access (SSH, Telnet)
Secure Email Communication (SSL/TLS, IMAP)
Web Server Access (HTTP)
File Transfer (FTP)
Mail Server (SMTP)
Troubleshooting NetBIOS Name Resolution
Network Device Management (TCP vs. UDP)
Remote Desktop Access (RDP)
File Server (CIFS)
Encrypted Remote Management (SSH)
👉 If you missed the previous videos in this series, find the playlist link below:
COMPTIA A+ 220-1101
Dive into this comprehensive TCP/UDP Ports and Protocols review and elevate your networking skills today!
0:00 Introduction
0:24 ] Our first question is all about securely transferring files between two Linux servers. Imagine you're a system administrator, and you need to do this task efficiently. Which protocol and port should be allowed in the firewall? A TCP 22
0:52 ] To securely transfer files between two Linux servers, you should use TCP 22 (A). This port is used by the Secure Shell (SSH) protocol, providing a secure channel for transferring files between servers. It's the perfect choice for maintaining confidentiality and integrity during file transfers. The other options wouldn't suit this task: UDP 53 (B) is used for Domain Name System (DNS) queries, not file transfers. TCP 389 (C) is used for Lightweight Directory Access Protocol (LDAP) connections, not file transfers. UDP 67 (D) is used for Dynamic Host Configuration Protocol
1:39 ] Moving on to question number two! A technician is troubleshooting connectivity issues accessing a web server. Which port needs to be open to allow access to the web server? A 25
2:42 ] Now let's dive into file and print sharing! Users report slowness accessing files on a file server. Which ports use TCP for file and print sharing? A 135-139
3:09 ] For file and print sharing using TCP, you should use ports 135-139 (A) and 445 (D). These ports are associated with Server Message Block (SMB) communication, which is a protocol used for file and printer sharing on Windows networks. The other options aren't quite right: Ports 161-162 (B) are used for Simple Network Management Protocol (SNMP) communication, not file and print sharing. Port 389 (C) is used for LDAP connections, not file and print sharing.
3:49 ] Our fourth question delves into central authentication using LDAP. A company wants to implement it, but which TCP port should be open on the LDAP server? A 389
4:15 ] To implement central authentication using LDAP, you should open TCP port 389 (A) on the LDAP server. LDAP is a protocol used for accessing and managing directory services, and it typically uses TCP port 389 for communication. The other options don't fit the bill: Port 443 (B) is used for HTTPS communication, not LDAP. Port 3389 (C) is used for Remote Desktop Protocol (RDP) communication, not LDAP. Port 8080 (D) is often used as an alternative HTTP port, not for LDAP.
5:28 ] To allow DHCP traffic on a network, you should permit UDP 67 (C) for the DHCP server and UDP 68 (D) for the DHCP client. DHCP is a protocol used for automatically assigning IP addresses and other communication parameters to devices connected to a network. It uses a connectionless service model and relies on the User Datagram Protocol (UDP) for communication. The other options aren't correct: TCP 67 (A) and TCP 68 (B) are not used for DHCP communication.
6:36 ] To forward DNS queries to the ISP's DNS servers, a SOHO router needs to configure UDP port 53 (B). DNS is a protocol used to
7:19 ] Now let's talk secure network management! A network administrator needs to manage routers securely from a central location. Which protocol should be enabled? A DHCP
7:44 ] To manage routers securely from a central location, you should enable the SSH protocol (D). SSH is a secure protocol used for remote management of network devices, providing encrypted communication between the administrator and the device. The other options aren't suitable for this task: DHCP (A) is used for automatically assigning IP addresses, not for secure network management. HTTPS (B) is used for secure web communication, not for managing routers. SNMP (C) is used for monitoring and managing network devices but doesn't offer the same level of security as SSH.
#techcertification #comptia
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