What is the role of Random-Access Channel (RACH)? (Select all that apply) Split data into smaller chunks that are encapsulated into RLC/MAC frames Device used to send RRC connection request messages from mobile device to network Used by the network to send RRC connection setup message and send user data Bidirectional logical CCCH on uplink transport layer Inform user of incoming calls or SMS messages

What is the role of Random-Access Channel (RACH)? (Select all that apply) Split data into smaller chunks that are encapsulated into RLC/MAC frames Device used to send RRC connection request messages from mobile device to network Used by the network to send RRC connection setup message and send user data Bidirectional logical CCCH on uplink transport layer Inform user of incoming calls or SMS messages

Principles of Information Security (MindTap Course List)

6th Edition

ISBN:9781337102063

Author:Michael E. Whitman, Herbert J. Mattord

Publisher:Michael E. Whitman, Herbert J. Mattord

Chapter8: Cryptography

Section: Chapter Questions

Problem 3E

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1.Create a new document called portmapping.txt in Ubuntu’s home directory and answer the following questions: 1.Add the following port information services: POP3, IMAP, SMTP, DNS, DHCP, NTP, LDAP, and BGP 2.An end-user is experiencing issues with connecting to testout.com. Everytime the user enters testout.com in their browser it takes them to blackboard.com. Run the command the will help troubleshoot the issue? Once you have the information from the command how would you verify? 3. Another Sys Admin oversaw deploying the LAMP stack for a new website. The components consist of Apache2 and MySQL. After deploying the website and notifying users of availability there has been a lot of support tickets for inaccessibility of the website. 400/404 Errors are appearing ‘Website unreachable’. How would you troubleshoot the error? Run the commands that would show you details on why the website may be unreachable (verify each component
What is DASH? In DASH (Dynamic, Adaptive Streaming over HTTP), a server divides a video file into chunks that ... (pick best completion from below) Group of answer choices A. ... are stored, each encoded at multiple rates (video quality). The client receives multiple video chunks (encoded at different rates) and plays out the chunks that best fit the screen size. B. ... are download smallest-chunk-first in order to maximize the number of chunks received. C. ... are stored, each encoded at multiple rates (video quality). The client plays the video chunk-by-chunk, with each chunk requested at encoding rate that fits the available bandwidth at the time. D. ... allow premium users to avoid watching chunks that contain commercials. E ... are downloaded just before their playout time. Chunking is used primarily because a viewer may jump around (e.g., fast forward) in a video.
using a UBUNTU machine i need a screen shot of these commands working without ur name in the screenshot A command such as: >>sudo tcpdump -nnvvXSs 1514 -i eth1 ‘proto ICMP’ Can you think of some use for this approach? Sniffing: >>>sniff() Collect data for a while Then control + c >>>a=_ >>>a.nsummary() What do you see? Set your VM to bridged mode You can also do some very slick network visualization of traceroutes if you install graphviz and imagemagic. This example is borrowed from the official Scapy documentation: >>> res,unans = traceroute (["www.microsoft.com","www.cisco.com", "www.yahoo.com","www.wanadoo.fr","www.pacsec.com"], dport=[80,443], maxttl=20,retry=-2) What do you see? You can now create a fancy graph from those results: >>> res.graph() What do you see? What does the graph tell you?
Say that the Top Level Domain .gov were to suddenly lose all its name servers due to a system crash. Now say that a user on a host example.school.edu wants to FTP to a machine called host51.defense.gov, with which they have never communicated. a. Explain the process that would occur starting with the user’s host until something goes wrong, and explain what would go wrong. b. Now, say that the user had already FTPed some files from host51.defense.gov 10 minutes before the nameservers at .gov crashed. Would connecting again likely work? If so, how would the process that occurred be different?
Can you provide some explanation and steps to do , i am using ubuntu20.04 on windows 10 VMware. also i could able to config VPN connection to the server what is next step also i would like to use python for programming. task description is below. Thanks A UDP service FlagServ is running at flagserv.cse543.rev.fish:13337. This UDP service receives a target IP address from the user, and if the user is authenticated, it will happily send a flag (a special string) via UDP to port 13337 of the target IP. Your job is to write a program that retrieves the flag. FlagServ employs THE BEST AUTHENTICATION METHOD IN THE WORLD: Source-IP-based authentication, which means it authenticates all users based on their source IP addresses. If a user's source IP address is trusted, FlagServ will send out the flag to the specified destination (repeat: via UDP). Otherwise, it will send an error message back to the untrusted user (via UDP, too). The only trusted IP is 10.2.4.10. Your task is to break or…
Use telnet to connect to any webserver (using HTTP). Then type a valid GET message to fetch the response message from webserver. That response message will be displayed on shell screen. Please submit a report (single PDF file) containing clearly readable screenshots all interactions between your machine and the webserver.
Create a server side script using inbuilt modules from Node.js(OS, Path, File system and HTTP).You need to display the total number of JPG files in the current directory or you can choose a particular directory. Please make sure all sub-directories are included in the search for the jpg file. Please send me the Solution in Javascript using Node js Server (Consider the subdirectory condition as well) Thanks in advance
please I want the solution on the Nmap program and taken screen shot for working dont answer if you dont work the command on program Using the Nmap tool complete the following tasks and store the outcome into a text file: Scan the open ports of an IP in your network domain (for example, 192.168.2.20) Scan all the machines in your network and list the available open ports. Create a list of target IP and scan these IP address for open ports and Operating System (OS) details.
On a basic Linux server following services are required Assign a dynamic IP address to a client on interface eth0 Find out the path of the packet to the server on (172.16.10.19), put your system in promiscuous mode. Apply forsetgid and sticky permissions on /home/Ali/programming Rename file present on Desktop from “file.txt” to “newfile.txt” Find out the number of IP addresses used by google.com Display all user accounts and groups in a Ubuntu system Display all files in /opt/ starting with s and have a .txt extension.
In the picture, if User X is you with email binus.ac.id: A. Explain how the e-mail you send (using your binus e-mail) can be reached and read by Bob? Note: in explaining use the keywords UA, MTA client, MTA server, MAA client, MAA server, Spool, mail boxes, mail server b. State the protocols and ports used during communication on the e-mail architecture above? c. How does DNS work on your computer to get the mail server IP in the image? d. How can repeated resolutions get IP mail servers?
Which of the following is NOT a reason to be against using static routing? O. More resources, such increased CPU power or bandwidth, are not necessary. O.b. Since the routing tables are very small, minimal maintenance is required. O.c. Any modification to the topology will have an impact on the configuration. The path never veers from the objective on the way there.
1. Persistent HTTP requires?a. 2(round trip times) + file transmission timeb. as little as two RTT for all the referenced objectsc. one file transmission timed. as little as one RTT for all the referenced objects 2. UDP has no connection between client & server?a. RCVR extracts sender IP address and portb. sender explicitly attaches IP destination address and portc. three other answers are incorrectd. no handshaking before sending data 3. A socket in computer networks is correctly defined as?a. A combination of IP address and port number, connected by a "/" symbolb. sender explicitly attaches IP destination address and portc. RCVR extracts from the socket, sender IP address and portd. A combination of IP address and port number, connected by a"." symbol 4. The data link layer provides?a. the functional and procedural means to transfer data between network entities and the means to detect and possibly correct errors that may occur in the link layer.b. the functional and procedural…