Comptia A+ Core 1 Exam: Guide To Computing Infrastructure (mindtap Course List)
10th Edition
ISBN: 9780357108376
Author: Jean Andrews, Joy Dark, Jill West
Publisher: Cengage Learning
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Chapter 8, Problem 3TC
Explanation of Solution
Given:
A server is running both a Telnet server and an FTPS server.
To find:The reason that the telnet server is not recommended for using a remote computer...
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Godwin Pharmaceuticals has a private web server for its corporate network that runs on a Linux operating system. A.You have been contacted to make its network remotely accessible to the IT department so that the IT department can have secure access to the workstations and, at the same time, the transmissions remain encrypted. Which of the following protocols would you apply so that the employees can have secured remote access to the computer server?
1.SSH
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3.RDP
4.POP3
A hacker just set up a TCP connection with a web server in Chicago, Illinois, claiming he is coming in with a source IP address that clearly belongs to a network in Copenhagen, Denmark. In examining the session logs, you notice that he was able to complete the three- way handshake for this connection in 10 milliseconds. How can you use this information to prove he is lying?
MCQ:
Ahmed is enumerating the details from port TCP389. What information is he likely to get?
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Email Status from the server
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Chapter 8 Solutions
Comptia A+ Core 1 Exam: Guide To Computing Infrastructure (mindtap Course List)
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- You are troubleshooting an issue and you think that it is a problem with the DHCP server configuration. Client get an IP address, they can ping IP addresses on the same network and on the internet, but they cannot pull up webpages. What is a likely cause of misconfiguration on the DHCP server? a.) incorrect ntp server b.) incorrect dns server c.) incorrect gateway d.) incorrect subnet maskarrow_forwardYou are a system administrator and all the computers on your organization’s network are unable to lease addresses from the DHCP servers. How will you fix this issue?arrow_forwardRefer to the following dynamic NAT configuration. The router R1 has 2 interfaces with the following configurations: G0/0 – inside network – 10.1.1.1/24 S0/0/1 – outside network – 209.165.200.225/27 End users are complaining that they can not access the Internet and, as a network engineer, you have been asked by your manager to analyze the NAT configuration and fix the problem. What part of the configuration is most likely incorrect? How it can be fixed? R1(config)# ip nat pool nat-pool1 209.165.200.226 209.165.200.240 netmask 255.255.255.0 R1(config)# ip nat inside source list 1 pool nat-pool1 overload R1(config)#interface G0/0 R1(config-if)# ip address 10.1.1.1 255.255.255.0 R1(config-if)#ip nat inside R1(config)#interface S0/0/1 R1(config-if)# ip address 209.165.200.225 255.255.255.224 R1(config-if)#ip nat inside R1(config)#access-list 2 permit 10.1.1.0 0.0.0.255arrow_forward
- On your computer's desktop, you see a lot of TCP connections in the FIN WAIT 1 state. Are there any other possibilities? How do we know who is to blame for this?arrow_forwarda.) Why have the standards makers chosen to specify that requests for Delivery Status Notifications are to be sent via SMTP, and not via a header in the mail heading? b.) What protocols can be applied when you want to transfer files between different platforms, such as UNIX systems and Windows servers? c.) In a Stop-and-Wait ARQ system, the bandwidth of the line is 2 Mbps, and 2 bit takes 30 ms to make a round trip. What is the bandwidth-delay product? If the system data frames are 10000 bits in length, what is the utilization percentage of the link?arrow_forwardWhich IP datagram fields vary between each of your computer's ICMP messages? Constant fields? Which field is fixed? Change which fields? Why?arrow_forward
- Your Network Administrator has contacted you to assist in examining a workstation that has been showing network fluctuations time and again. It seems that someone spilled some hot water over the Ethernet ports. Which of the following addresses will you choose to check the functionality of the Ethernet card without worrying about corrupted hardware and to ensure that the workstation's TCP/IP services are running? ping -a 8.8.8.8 ping -a 0.0.0.0 ping 127.0.0.1 ping 192.168.1.1arrow_forwardLet's pretend you've got plenty of FIN WAIT 1 TCP connections on your computer's desktop. Is there a most probable outcome? So, whose fault is it?arrow_forwardLet's say you've seen a lot of TCP connections on your desktop that are in the FIN WAIT 1 state. Which of the following is the most probable outcome? Who exactly should we blame?arrow_forward
- Which of the following is true about the concern of “Taking turns” MAC (Medium Access Control) protocols? a.Pre-allocation of time slots to the network nodes b.Single point of failure (token) c. Collision detection d. Pre-allocation of frequency bands to the network nodesarrow_forwardIn the context of DHCP what is the purpose of an IP helper address? a. The gateway for the computers in the segment b. Used to map private addresses in public ones for the purpose of accessing the outside c. Allows routers to forward DHCP requests to the segment where the server can be found d. It is a temporary IP address used by end-devices to issue requests to the DHCP serverarrow_forwardYour DHCP server now uses these alternative DNS servers. In general, what is the best way for your consumers to get the new settings? * Two separate computer restarts are required. Enter ipconfig /registerDNS on the client. Wait for the DHCP client to request a lease renewal. O Type ipconfig /renew into the client's terminal. Server DNS cache must be cleared.arrow_forward
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