Which of the following is TRUE about the Ethernet Frame Check Sequence (FCS) field? Q9 It is used for error recovery. It is 2 bytes long. It resides in the Ethernet trailer, not the Ethernet header. It is used for encryption. А. В. С. D. Е. None of the other answers is correct. Q10 Each Class C network contains how many IP addresses that can be assigned to hosts? А. В. 65,532. 32,768. C. 32,766. 256. D. Е. 254.
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- which of the following statements is not correct regarding VPN tunneling? 1. A VPN tunnel is a virtual circuit between 2 VPN devices 2. Data transmitted in a VPN tunnel is encrypted 3. The destination IP address of an IP packet captured in a VPN tunnel should be the web sever that the user wants to access 4. a Layer 2 VPN device will encapsulate an entire Ethernet packetWhich two protocols manage neighbor discovery processes on IPv4 networks? ICMP and ARP IPv4 and IPv6 TCP and UDP NDP and Ethernet You’re getting a duplicate IP address error on your computer and need to figure out what other device on your network is using the IP address 192.168.1.56. What command will show you which MAC address is mapped to that IP address? telnet 192.168.1.56 tracert 192.168.1.56 arp -a netstat -nWhich protocol below uses an internal tagging method? IEEE 802.1q VLAN IEEE 802.3u ISL Which is not a method of frame tagging? FDDI LANE IEEE 802.3u IEEE 802.1q What will limit a broadcast domain? VLANs Switched network Switched network Flat network If the link that connects 2 switches carries information from multiple VLANs, then the link must be Configured as an RS-232 Link Configured as a Data Link Configured as an Access Link Configured as a Tru nk Link Skip question Exit Exit
- 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 DHCPWhich Scopes in a DHCP Server is used to offer IPV4 address pools for Class A, B, and C networks and contains an IP address range assignment that includes the subnet mask, exclusions, and reservations? * Standard Opinions Scopes for Failover Greetings Multicast Scopes, Super ScopesWhich of the following protocols can detect and correct link failures in milliseconds? a. TRILL b. SPB c. RSTP d. CARP Valentina is employed under the network management team at Iris Global Services, which is a software management firm. Following a recent hacking attempt at its office, the network administrator wants her to cross-check whether security precautions have been enabled on the STP interfaces so that the information transmitted by the BPDUs can be protected. On inspection, she discovers that the security precautions have not been configured. Analyze what Valentina should do in order to prevent a rogue switch or computer connected to one of these ports from hijacking the network's STP paths. a. Use the shutdown command to disable unused ports b. Use a root guard on the switches c. Use a BPDU filter to disable STPs d. Use a BPDU guard to block BPDUs You already have a running network in your organization, but…
- Which one of the following statement is true about IEEE 802.1X a port-based access control and authentication protocol? a. Allows unauthorized workstations from connecting to a LAN through publicly accessible switch ports. b. Restricts unauthorized workstations from connecting to a LAN through publicly accessible switch ports. c. Not allows authorized workstations from connecting to a LAN through publicly accessible switch ports. d. Restricts authorized workstations from connecting to a LAN through publicly accessible switch ports.Give Answers to the Following Question. What is the IP address you have used for configuration? Mention the class as well. How many Networks are there in the given Network? How many bits you have borrowed? Mention bits borrowed for each NETWORK. Classify the NETWORKS on basis of same number of IP addresses. Write Subnet Mask of each Network. What is the Minimum power of borrowed bit? Write down first and last usable IP addresses of NETWORK A to E. What is the NETWORK ID and BROADCAST ID for NETWORK H to K. mention for all networks from H to K? What is the total Number of IP addresses and Users present in the whole Network?In class, we have talked about how messages are transferred from one layer to another on our TCP/IP model and the different protocol data Units (PDUs). You are now required to use Wireshark to perform network analyses covering the following : 1.Capture network packet on a LAN 2.Perform network sniffing on the LAN (e.g.)Sniffing Usernames, Passwords, Web Pages, etc 3.Use Wireshark to examine frames after the attack.
- Which of the following are true about MAC and IP addresses as a packet/frame goes through 2 routers to reach its destination? Assume Network Address Translation (NAT) is not involved. Select one or more: a. The destination IP address in the packet will change each time the packet goes through a router. b. The destination MAC address in the frame will remain the same. c. The destination IP address in the packet will remain the same. d. The destination MAC address in the frame will change each time the frame goes through a router.Which of the following statements is true about routing functions? A router uses network addresses to forward messages. A router forwards DHCP frames at Layer 2. Both (A) and (B) are correct. None of the above are correct. 2) A WiFi access point is responsible for the following: Flow and error control. Identifying Network protocols. Multiple-access resolution. All of the above.In packet tracer application, which of the following is used to view the last command applied in CLI? Up Arrow Right Arrow Ctrl-C Left Arrow What is the IEEE specification for Spanning Tree Protocol? 803.1 803.ud 802.1d 802.9