Answer:
SELECT paintname, COUNT(paintname) as count_paintname
FROM paint
GROUP BY paintname HAVING COUNT(paintname) > 2
ORDER BY paintname
Explanation:
The structured query language or SQL statement returns two columns of paintname and the count of the distinct paint names in the paint table with rows of grouped paint names greater than two and in the ascending order of the names.
Answer:
1. The network address for 172.22.49.252/17 is 172.22.0.0/17.
2. The last valid assignable host address of 172.22.4.129/26 is 172.22.4.190.
3. The first and last host address of 192.167.25.25/16 is 192.167.0.1 and 192.167.255.254.
4. The broadcast address of 10.75.96.0/20 is 10.75.111.255
Explanation:
Subnetting in networking is the process of managing the use of host addresses and subnet masks of a network IP address. For example, the IP address "172.22.49.252/17" is a class B address that receives an extra bit from the third octet which changes its subnet-mask from "255.255.0.0" to "255.255.128.0". with this, only 32766 IP addresses are used, with the network address of "172.22.0.0/17".
Answer:
C++.
Explanation:
#include <iostream>
#include <string>
using namespace std;
////////////////////////////////////////////////////////////
class Television {
string brand;
float screen_size;
bool powerOn;
int volume;
int channel;
public:
// Comments
Television(string brand, int screen_size) {
this->brand = brand;
this->screen_size = screen_size;
powerOn = false;
volume = 20;
channel = 2;
}
//////////////////////////////////////////
// Comments
int getVolume() {
return volume;
}
// Comments
int getChannel() {
return channel;
}
// Comments
string getManufacturer() {
return brand;
}
// Comments
float getScreenSize() {
screen_size;
}
///////////////////////////////////////////
// Comments
void setChannel(int channel) {
this->channel = channel;
}
// Comments
void power() {
if (!powerOn)
powerOn = !powerOn;
}
// Comments
void increaseVolume() {
volume = volume + 1;
}
// Comments
void decreseVolume() {
volume = volume - 1;
}
};
Answer:
DHCP is the dynamic host configuration protocol that enable the server for assigning the IP address to the computer. It is basically used to provide automatic IP addresses within the network. It is basically used to configure the default gateway and provide the DNS server data in the device.
The optional parameter when configuring DHCP are:
- Sub-net mask
- Router
- Domain server
- Broadcast address
- Host name
Answer:
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Explanation:
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