Concept explainers
Explanation of Solution
Given:
The ipconfig/all command is run on a computer, and gives the following results:
Ethernet adapter Ethernet:
Connection-specific DNS Suffix.:
Description....................: Realtek PCIe GBE Family Controller
Physical Address...............: 54-53-ED-BB-AB-A3
DHCP Enabled...................: Yes
Autoconfiguration Enabled......: Yes
Link local IPv6 Address........: fe80::64d2:bd2e:fa62:b911%10 (Preferred)
IPv4 Address...................: 192.168.2.166 (Preferred)
Subnet Mask....................: 255.255.255.0
Lease Obtained.................: Sunday, August 19, 2018 10:56:41 AM
Lease Expires..................: Sunday, August 19, 2018 1:56:41 PM
Default Gateway................: 192...
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Chapter 8 Solutions
Comptia A+ Core 1 Exam: Guide To Computing Infrastructure (mindtap Course List)
- Q5) The network administrator decided to deny traffic from PC1to PC4 while permitting it from PCO and PC2 to PC4. However, by testing the ACL configuration on R2, the network administrator has discovered that all hosts in the 10.0.1.0/24 network are not ABLE to communicate with PC4. interface Gigabitéthernet 0/0 ipaddress 10.0.3.1255.255.255.0 no shut down ip access-group 115 OUT R28sh access-lists StandardIP access list1ls 10 deny 10.0.1.0 0.0.0.255 20 permit any 1) Is the ACL number convenient for the stated policy? * (O No: for standard between 1and 99 (O No: for standard between 150 and 199 (O Yes: for standard > 99arrow_forwardYour virtualization server uses vSphere from VMware. You have created several VMs for which you must provide network connectivity. After you create a virtual switch, you edit the settings of one of the VMs to attach it to the switch, but you are unable to do so. What should you do to so you can attach the VMs to the new virtual switch?  a. create a port group   b. configure TCP/IP   c. enable the virtual switch   d. disable the management networkarrow_forwardListing and identifying sockets. the ss command may be used to display the listening connections and the established connections on a machine. Suppose you see the sample output shown below. Netid State Local Addr:Port Peer Addr:Port Users udp UNCONN 0.0.0.0:8003 0.0.0.0:* (pid=29604,fd=3) tcp LISTEN 0.0.0.0:8003 0.0.0.0:* (pid=28832,fd=3) Netid State Local Addr:Port Peer Addr:Port Users tcp ESTAB 127.0.0.1:8003 127.0.0.1:47468 (pid=28832,fd=4) tcp ESTAB 127.0.0.1:47468 127.0.0.1:8003 (pid=29910,fd=3) The output above lists all the connections on the machine where the ss command is run. Helpfully, the last column of the output, entitled Users, also shows the process ID (pid) of the application process associated with the socket and the number of the file descriptor (fd) associated with the socket. (a) Suppose a TCP packet enters the machine, destined to TCP port 8003 corresponding to an established connection. Can you identify the pid and socket fd, if any, corresponding to the socket…arrow_forward
- Loss of network connectivity can be frustrating to users and can be costly to a business. As an IT technician, you might be asked to restore these connections. Familiarity with TCP/IP utilities can help you narrow down the source of the problem. Open a command prompt, type ipconfig /all and press enter 1. What is the IP address? Â 2. What is the physical address (MAC)? Â 3. What is the address of the default gateway? Â 4. What is the address of the DHCP server? Â 5. What is the address of the DNS server? Type ping cengage.com and press enter. Â 6. What is the IP address that was pinged? Â 7. Where did that IP address come from? Type nslookup course.com. Â 8. What is the IP address returned? Open a browswer and go to sctech.edu. At the command prompt type ipconfig /displaydns and press enter. Browse through the results. Â 9. What is the IP address for sctech.edu?arrow_forwardYour 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? Â Â ping -a 8.8.8.8 Â Â ping -a 0.0.0.0 Â Â ping 127.0.0.1 Â Â ping 192.168.1.1arrow_forwardComputer Science Arriving at your university room, you plug into the wired Ethernet jack for the first time. The network admin has a record of your MAC address and your machine can join the network without further action on your part. Assume: Your laptop's Ethernet address is 0a:0b:0c:0d:0e:0f, DHCP server address is 131.111.7.3, your IPv4 address will be 131.111.7.121, the gateway's IP address is 131.111.7.1, and Ethernet address is 00:01:02:03:04:05, the network subnet mask is 255.255.255.0.Write the series of protocol/packet exchanges that occur on the wired Ethernet link, up until you can send a single packet to 128.232.0.20. You do not need to describe packets after this packet has left the link. Include ARP and DHCP.arrow_forward
- You as a network administrator want to protect the network from unauthorized traffic, and for this reason, you decide to change the native VLAN to an unused VLAN so that the untagged traffic is essentially directed toward a dead-end. Which of the following commands will you use to do this on a Cisco switch?  a. set native-vlan-id  b. set port-mode trunk  c. switchport trunk native vlan  d. ip dhcp snoopingarrow_forwardq30- A PC cannot connect to any remote websites ping its default gateway, or ping a printer that is functioning properly on the local network segment. Which action will verify that the TCP/IP stack is functioning correctly on this PC? Select one: A. Download a troubleshooting tool from the PC manufacturer's website B. Use the traceroute command at the command prompt to identify any failures on the path to the gateway C. Use the ping 127.0.0.1 command at the command prompt D. Use the ipconfig /all command at the hosts command prompt E. Use FTP to check for connectivity to remote sitesarrow_forwardRoss is running a small data entry back office, for which he has contracted you for network management. Ross has made it very clear that because he has just started the company he wants to cut down on expenses wherever he can. One such option involves the router-he wants to exchange the router with a similar but less expensive alternative. Which of the following will you refer to Ross in such a situation?  a. A layer 3 switch  b. An SDN controller  c. Storm control  d. A root port Which of the following is a distinct network of storage devices that communicate directly with each other and with other portions of the network?   a. SDN  b. A BPDU guard  c. STP  d. A SANarrow_forward
- Comptia A+ Core 1 Exam: Guide To Computing Infras...Computer ScienceISBN:9780357108376Author:Jean Andrews, Joy Dark, Jill WestPublisher:Cengage LearningA+ Guide to Hardware (Standalone Book) (MindTap C...Computer ScienceISBN:9781305266452Author:Jean AndrewsPublisher:Cengage LearningA+ Guide To It Technical SupportComputer ScienceISBN:9780357108291Author:ANDREWS, Jean.Publisher:Cengage,