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A Switch Receives A Frame Addressed To The Mac Address Ff
A switch receives a frame addressed to the MAC address FF: FF: FF: FF: FF: FF. What will the switch do with the frame? Except for the port where the MAC address is received all other ports are sent out. Along with any connected switches, the MAC address table entry is shared by the switches The fraRead more
A switch receives a frame addressed to the MAC address FF: FF: FF: FF: FF: FF. What will the switch do with the frame?
Answer: When the switch receives the frame which is addressed with the MAC address FF: FF: FF: FF: FF: FF then except the port where the MAC address is received all other ports are sent out.
The switch work is to connect the devices in the network and permit them to share the data frames. Switches are either hardware devices or virtual devices which are software-based. Switches give the wire-based connection, wireless access, IoT devices, and card system. The virtual machine in data centers, the servers, and most of the storage devices are connected through the switches. in telecommunication, it can carry broad traffic.
In the OSI model, the switch is operated on layer 2. According to the MAC address of the device, the switch decides where to send the frames which are coming in the LAN by using Ethernet. The switches manage the tables where the MAC address complements the incoming physical address. The working of the switches is described in the following:
- The traffic coming in the new or existing network, the switches work is to handle it. Computers and the access points are connected with the edge switches.
- The switches are located in the center layer, the edge switches connect with the distribution switches and the traffic is sent from the switch to the switch.
- The core switches make the computer backbone,it work by connecting the edge switches.
See lessWhat Two Linux Distributions Below Utilize The Debian Package Manager By Default?
What two Linux distributions below utilize the Debian package manager by default? UNIX. Windows. Linux Mint. Ubuntu Linux. Answer: The Linux mint and Ubuntu Linux are the two Linux distributions that use the Debian package manager by default. The Linux distribution is also known as the Linux DistroRead more
What two Linux distributions below utilize the Debian package manager by default?
Answer: The Linux mint and Ubuntu Linux are the two Linux distributions that use the Debian package manager by default.
The Linux distribution is also known as the Linux Distro an OS which is the result of the combination of different elements created by many open-source projects and the programmers. The components of the Linux Distro are the Linus kernel, the GNU shell, X server, package management, installer, and many different services. Most of the elements are independently created and in a way of source code they are distributed.
The Linux distribution has a huge number of software packages, utilities, and applications. A browser, management tools, and software like KVM hypervisor are also part of the Linux distro. Linux is kernel while Linux distro is the OS that is the reason sometimes, they are referred to as the Linux-based-OS.
Linux distribution combines different Open-source codes to the Operating system which are allowed to install and booted.it is available for the desktop, server without the use of graphical interface, mobile phones, an embedded system, etc. as it is open source so people can use the source code with some modification and form their Linux distribution and also modify the existing version. Almost 300 Linux distributions are available in the market.
Some of the commercial-based distro available like fedora, SUSE, Ubuntu, and also the community-driven, like Debian, Gentoo, etc. Mostly they are available in ready-to-use form with some instruction. Some of the commercials charge for the support while most are open source.
See lessWhat Will Be The Values Of X And Y As A Result Of The Following Code?
What will be the values of x and y as a result of the following code? Int x=25, y=8; x+=y++; Answer: The answer to the following code is x=33, y=9 and the structure to run the code are: #include<iostream> using namespace std; int main () { int x=25, y=8; x+=y++; return 0; } C++ is the languaRead more
What will be the values of x and y as a result of the following code?
Int x=25, y=8;
x+=y++;
Answer: The answer to the following code is x=33, y=9 and the structure to run the code are:
#include<iostream>
using namespace std;
int main ()
{
int x=25, y=8;
x+=y++;
return 0;
}
C++ is the language for the application whose base is speed and effective memory maintenance. Most of the software and game developers, robots use this language. It is considered cross-platform. Most of the excellent performance applications are developed with the use of C++.it was basically created by Bjarne Stroustrup and refers as the C language extension. One of the benefits of C++ is that it provides good control of the resources and the storage. The updates in the language happen 3 times in 2011,2014 and 2017 and refer as C++ 11, C++14, C++17. The reason to use the C++language is described in the following:
- It is among the popular programming languages.
- Most of the OS graphical interfaces and embedded systems have based on this language.
- It is the object-oriented programming language that provides the program structure and the codes that are allowed to be reused, which reduces the cost of development.
- It is a portable language and use in different applications that can adapt to multiple platforms.
- It is easy to learn and execute.
- It is quite similar to c sharp (C#) and java which is easy for the programmers to learn these languages as well.
- It is flexible and fast.
- The functionality is low-level.
- The documentation is easy and strong.
See lessWhat Will Be Printed After The Following Code Is Executed?
What will be printed after the following code is executed? for (int number = 5; number <= 15; number +=3) System.out.print(number + ", "); Answer: The result of the following executed code is 5,8,11,14. Java is designed to have few deployment dependencies. It is referring as object-oriented, clasRead more
What will be printed after the following code is executed?
for (int number = 5; number <= 15; number +=3)
System.out.print(number + “, “);
Answer: The result of the following executed code is 5,8,11,14.
Java is designed to have few deployment dependencies. It is referring as object-oriented, class-based language. For the development of the application, it is one of the best platforms. Due to its speed, security, and reliability, it is mostly used to develop Java-based applications in games, laptops, mobile phones data centers, etc. The machine code is the essential component of Java.
The java platform is the program combo that helps the programmers to create and run the java application with efficiency. The execution engine compiler and different libraries are included in it for development.it is the combination of the software and the computer
specification. Some of the java programming characteristics are discussed in the following:
Java uses:
A few of the uses of the Java programming language are listed below:
- It can help in the development of android apps.
- The enterprise software’s are also developed with the help of this language.
- It has a wide range of mobile applications in which the language is used.
- It is used in scientific computing apps.
- The large data analytics are determined with the use of Java.
- The server-side uses java language such as Apache, JBoss, etc.
- Java programmed the hardware devices.
See lessWhat Will Be The Values Of Ans, X, And Y After The Following Statements Are Executed?
What Will Be the Values of Ans, X, And Y After the Following Statements Are Executed? Int Ans = 35, X = 50, Y = 50; If (X >= Y) Ans = X + 10; X -= Y; Else Ans = Y + 10; Y += X; Ans = 60, X = 0, Y = 50 Ans = 35, X = 60, Y = 10 Ans = 55, X = 80, Y = 40 Ans = 115, X = 65, Y = 90 Answer: TheRead more
What Will Be the Values of Ans, X, And Y After the Following Statements Are Executed?
Int Ans = 35, X = 50, Y = 50;
If (X >= Y)
Ans = X + 10; X -= Y;
Else Ans = Y + 10;
Y += X;
Answer: The value of the Ans, X, and Y after the statement is executed is Ans=60, X=0, and Y=50.
The codes in the programs are the set of instructions given by the users. The instructions given for the codes are different like subtracting the numbers or heck if the value is equal to some condition. The instructions are stored in the form of bytes. as CPU executes 2 billion operations in a second it means the 2 billion codes are executed in the second.
The programs are the combination of the codes which are in bulk amounts. Such as the Firefox is built for the instruction that can add more than two numbers it is difficult to believe but it’s the fact. The programs work when the CPU executes the instruction with the help of the: fetch-execute” cycle. Instructions come in a sequence toward the CPU, they are executed and then the next instruction is executed and the cycle starts. Some lines in the instruction become the reason to distort the order of the CPU. Sometimes there might be an instruction that allows the CPU to move back to the initiation point or to skip the instruction and move to the other one if the given statement is true, and the IF statement work in the scenario. The collection of the machine code makes the programs
See lessWhat Will Be The Value Of Ans After The Following Code Has Been Executed?
What will be the value of ans after the following code has been executed? int x = 90, y = 55, ans = 10; if (x == y ); ans *= 2; 29 20185 There is an error in the syntax that’s why the programs do not execute. Answer: The variable ans will be equal to 20 after the above code has been executed. theRead more
What will be the value of ans after the following code has been executed?
int x = 90, y = 55, ans = 10;
if (x == y );
ans *= 2;
Answer: The variable ans will be equal to 20 after the above code has been executed.
the conditional statements assist in decision making which is based on certain conditions. The conditions are either true or false but some of the statements have an alternative such as if one of the conditions is not fulfilled then the other condition may run. The types of the conditional statements are described below:
If statement:
An IF statement work only if the given condition is true otherwise the program is terminated. The syntax of the statements are:
If (condition) {
}
If else:
It is a two-way statement; in it, the program is executed if the condition is fulfilled or not. The syntax of the statement is:
If (condition)
{
statement
}
Else {
}
If else if:
In the if-else if statement’s the code run for more than two conditions, it is also known as the multiple path decision. The syntax is in the following:
If (condition)
{
statement’s
}
Else if (condition) {
}
Else {
statement
}
Nested if-else:
The statement is useful if the program needs two or more test conditions, it is referred to as the multi-way selection statement. If the sequence of the decision is present in a statement then if-else is used in a nested statement. The syntax of the given statement is listed in the following:
If (condition)
{
If (condition)
{
Statement 1;
}
Else {
Statement 2;
}
}
Else
{
Statement 3;
}
See lessWhat Type Of Malicious Software Masquerades As Legitimate Software To Entice The User To Run It?
What type of malicious software masquerades as legitimate software to entice the user to run it? Multipartite virus. Worms Spyware Trojan horse. Answer: Trojan horse is malicious software that masquerades as legitimate software to entice the user to run it. A trojan horse is not like other virusesRead more
What type of malicious software masquerades as legitimate software to entice the user to run it?
Answer: Trojan horse is malicious software that masquerades as legitimate software to entice the user to run it.
A trojan horse is not like other viruses, it just needs the end-user help by downloading the server-side application for its work. Simply put the file (.exe) need to be implemented and the program must be installed for the software to work.
The virus spreads with the legal-looking emails and files that are attached to it, and they are spam so that it can be spread to a lot of people. When someone opens the email the files downloads, the Trojan will automatically install and run each time when the device is on.
The virus is also infected with the social engineering techniques, that are enforced by the cybercriminals by convincing the user to download the malicious-looking files. The virus is in the links on the website, the ads, pop-ups links, etc.
The infected computer is also capable to spread the virus to another computer. The device becomes the zombie device, which means the hackers have control of the system without the permission of the user, the computer spreads the virus all over the network and the process is called a botnet.
The virus or malicious file remains undetected unless the user went to a certain site or banking app. The detected code is activated and brings the actions of the hackers. On the base of the trojan, the virus deletes by itself and is also able to stay active on the system. The mobile device, tabs are also affected by this software.it happens by redirecting to the devices that are connected through wireless and using them for their malicious works.
See lessWhat Is The Maximum Transmission Power For Ieee Wlans?
What Is the Maximum Transmission Power for IEEE WLANs? Answer: The maximum transmission power for the WLANS of IEEE is considered to the 200 milliwatts (mW). IEEE standard which is also known as the WIFI contains the architecture and the characteristics of (WLANs) wireless LANs. To connect with theRead more
What Is the Maximum Transmission Power for IEEE WLANs?
Answer: The maximum transmission power for the WLANS of IEEE is considered to the 200 milliwatts (mW).
IEEE standard which is also known as the WIFI contains the architecture and the characteristics of (WLANs) wireless LANs. To connect with the nodes, it uses high frequency. Some of the IEEE WLANs standards such as 802.11,802.11a,802.11b,802.11g,802.11n, and 802.11p are described below. All of them use CSMA/CA transmission.
IEEE 802.11:
It is the oldest version of the standard and was released in 1997, the transmission rate is around 1 Mbps to 2Mbps in the bandwidth of 2,4 GHz.it uses either frequency-hopping spread spectrum or DSSS.
IEEE 802.11a:
It was released in 1999 and contain modification as compared to 802.11 along with an OFDM interface rather than FHSS or DSSS. The data transmission rate along with 5 GHz bandwidth is 54Mbps.it also contains the error correction code.
IEEE 802.11b:
It is the extension of the 802.11 and was released in 2000, the modulation method is the same as the original version. The bandwidth is 2.4GHz the only difference is that the data transmission rate is 11Mbps rather than 2 Mbps and that’s why it is adaptable to WLANs.it can face hindrance from other devices because the bandwidth is crowded.
IEEE 802.11g:
It was published in 2003. the band is 2.4 GHz but the transmit power rate is about 22mbps. the modulation technique in it is OFDM .it is compatible with 802.11. Due to its operation being 2.4GHz it can also face disturbance.
IEEE 802.11n:
It was the standard which is published in 2009 and works on both 2.1 GHz and 5GHz bandwidths. The data transmission rate may vary from 54 Mbps to 600Mbps.it contains the modification from the previous version by containing the MIMO antennas.
IEEE 802.11p:
It is the alteration by having the WAVE (wireless access in the vehicular environment) assist the ITS. It has the communication among the vehicles and the environment. The data transmit rate is about 27Mbps with a bandwidth of 5.9 GHz.
See lessWhat Is Not A Variable That An Network Access Control List Can Filter Traffic With?
What is NOT a variable that a network access control list can filter traffic with? Packets use network-layer protocols. Packets use the transport layer protocol. The TCP/UDP port numbers of the source or destination are present in the packets. An Operating system that is used by the source or destinRead more
What is NOT a variable that a network access control list can filter traffic with?
Answer: The operating system used by the source or destination is not a variable that a network access control list can filter traffic with.
For the VPC which work as the firewall for traffic controlling the network access control list act as the operational layer of the security inside and outside of the subnets which are more than one. The network ACLs rules need to be similar to the security if you want to add the extra layer in a VPC for security. Some of the important points which we need to know about network ACLs are listed in the following:
- The VPC comes with the default adjustable ACL network, and it permits the inbound and outside IPv4 traffic which is also applied to the IPv6.
- The customized ACL network is also formed which is further connected with the subnet, and it can reject all the traffic whether it is inbound or outbound till the rules are added.
- Every subnet in the VPC is related to it. if we can’t associate the subnet then it will automatically associate with the default network ACL.
- The inbound and outbound rule for it is different and can be selected or rejected.
- It is stateless, a vice versa which means the responsibility for the allowed inbound work as the subject to the rule of outbound.
- It can also associate with multiple subnets, but the subnet is linked with only one network ACL at the same time, when it is associated with the subnet the first association is removed.
- Various rules are present for it and they are arranged in order from the lowest-numbered to the highest number rules which are 32766.
See lessWhat Command Would You Use To Only See The Ospf Routes In The Routing Table?
What Command Would You Use to Only See the OSPF Routes in The Routing Table? Answer: The command which we would use to just see the OSPF routes in the routing table is the show ip route [ospf | subnet mask]. The commands of the OSPF network are used to compare the IP addresses and they are configureRead more
What Command Would You Use to Only See the OSPF Routes in The Routing Table?
Answer: The command which we would use to just see the OSPF routes in the routing table is the show ip route [ospf | subnet mask].
The commands of the OSPF network are used to compare the IP addresses and they are configured on the interfaces only the match IP addresses in the OSPF procedure. to manage the bits in an octet and to make sure there are the same the OSPF network uses the wildcard masks. The command show ip OSPF neighbor is for to identify the information of the neighborship of the OSPF where the interface is a part apart from it the state, the neighbors address and its router ID.in order to select the router ID, the router has to move to a procedure, and when the router ID found the process stops. The process is that if any value configured through a command router-id greater the configured IPv4 address of the loopback interface, then the greater configured IPv4 addresses of the physical interface.
The show ip OSPF interface is used to display that which interfaces are allowed in the process of OSPF. Only the router if the OSPF is configured in multiple areas known as Area Border Router. To display the OSPF neighborship the command which is used is show ip OSPF neighbor. For the database of the OSPF, the command which is used is to show the ip OSPF database. The show the OSPF routes in the existing routing table the command is shown ip route.to determine the configured area the command which is used is to show ip protocols and show ip OSPF interface.
See less