Jumat, 25 Januari 2013

jawaban JENI 1: Struktur Control (Score 100%)

jawaban JENI 1: Struktur Control (Score 100%)


1. Apa yang akan dicetak dari program berikut?
2
2. Apa yang menjadi output potongan kode berikut?
- Nilai dari i = 1 Nilai dari j = 1
- Nilai dari i = 2 Nilai dari j = 1
3. Pilihan mana yang merupakan output yang benar?
i = 1 j = 0
4 untuk potongan program dibawah ini, apakah outputnya?
10
5. Apa yang menjadi output potongan kode berikut?
Tidak ada jawaban yang benar
6. Apakah yang terjadi apabila source code diawah ini dicompile dan dirun? public class If2 {
public static void main(String[] args) {
int j = 0;
for ( int i=0;i<=10;i++){
if (i%2==0){
do{
System.out.println("2") ;
}
while (j>3);
}}}}
Tidak ada jawaban yang benar
7. Pernyataan yang benar adalah :
Tidak ada jawaban benar
8. Apa yang menjadi output kode diatas?
pesan keempat
9. Potongan kode dibawah ini berada dalam method main sebuah kelas.
Output yang dihasilakn adalah :
2 3 4 5
10. Pernyataan mana yang benar mengenai kode berikut ini?
Output dari kode diatas adalah "nilai j adalah 2" diikuti dengan "nilai j adalah 3"
11. pernyataan manakah yang benar mengenai potongan program berikut
Kode diatas akan menhasilkan sintak error
12.Mana dari kode-kode berikut ini yang apabila dicompile tidak menghasilkan error:
B dan C
13. Apa yang akan dicetak dari program berikut?
- 1
- 2
14. perhatikan potongan berikut. apakah outpunya
7
15. pernyataan manakah yang benar mengenai program berikut
Statement2 dan statement3 tidak pernah dijalankan
16. Apa yang menjadi output kode berikut?
Tidak ada pilihan diatas yang benar
17. Mana dari pilihan - pilihan berikut merupakan output yang sesuai?
- i = 0 j = 1
- i = 0 j = 2
- i = 1 j = 0
- i = 1 j = 2
18.Berikut yang benar mengenai potongan program di bawah ini adalah double a,b,c;
int con1=0,con2=0,con3=0;
Terus1 :
for(a=0.0;a<10.0;a+=0.1){
if (a>=9.9)break;
//Letak Statement 1
Terus2:
for(b=0.0;b<10.0;b+=0.1){
if(b>=0.9)continue Terus1;
Terus3:
//Letak statement 2
for(c=0.0;c<10.0;c+=0.1){
if (c>=0.1)continue Terus1 ;
//Letak Statement 3
}}}
Kode diatas menghasilkan runtime error
19. Mana diantara pilihan-pilihan berikut ini yang merupakan penulisan loop yang benar?
gambar C
20. Tipe data mana yang dapat menjadi label didalam statement switch?
-char
- int

Selasa, 15 Januari 2013

IT Essentials-Chapter 3: PC Hardware and Software (Version 4.1)

IT Essentials-Chapter 3: PC Hardware and Software (Version 4.1)

Chapter 3 Exam - IT Essentials: PC Hardware and Software (Version 4.1)

jawaban
pertanyaan
20-pin connector
         A technician is installing a new power supply in a computer. Which type of power connector should be used to connect to an ATX motherboard?
Pin 1 on the CPU is aligned with Pin 1 on the ZIF socket.
When installing a CPU in a ZIF socket, how should the technician align the pins to avoid damage?
1- hard drive
2- floppy drive
When building a computer, which two components are normally installed in 3.5-inch drive bays? (Choose two.)
1- PS/2
2- USB
Which two connectors are used to connect external peripherals? (Choose two.)
1- PCIe
2- PCI
A field technician has been asked to install a wireless 802.11g NIC in a computer, but is unsure about the expansion slots available. Which two types of wireless NICs should the technician have available? (Choose two.)
during the POST
After a technician has assembled a new computer, it is necessary to configure the BIOS. At which point must a key be pressed to start the BIOS setup program? 
It issues a number of short beeps.
A technician has just finished assembling a new computer. When the computer is powered up for the first time, the POST discovers a problem. How does the POST indicate the error?
Use standoffs to keep the motherboard above the metal base.
Which action is recommended to prevent the motherboard from contacting the metal base of the case? 
The floppy cable has a twist in the cable.
What is a convenient way that a technician can tell whether a ribbon cable is for an IDE hard drive or a floppy drive? 
optical drive
Which type of drive is installed in a 5.25-inch bay?
Check the motherboard manual or manufacturer's website.
What is the most reliable way for users to buy the correct RAM to upgrade a computer? 
performs a check on all internal components
What is a function of the BIOS?
Reattach the side panels to the case.
What should be the next installation step after all the internal components of a PC have been installed and connected to 
Step 2
Refer to the exhibit. Which should be the last step when connecting external cables to a computer? 
provides an interface between a computer and a display monitor
What is a function of a video adapter card?
to provide functionality for external components to be connected to the computer
What is a function of the adapter cards that are installed in a computer?
1- a floppy data cable to connect the FDD to the motherboard
2- a cable from the power supply to the Berg power connector on the FDD
Which two connections should be provided to a floppy disk drive during installation? (Choose two.) 
in internal bays
Where should internal drives be installed in a computer? 
Steps 1, 4, 3
Refer to the exhibit. What is the order of steps that should be followed for a power supply installation in a computer? 
Consult the website of the manufacturer
What is the first step that a technician should take before physically opening a computer case?



IT Essentials-Chapter 2: PC Hardware and Software (Version 4.1)

IT Essentials-Chapter 2: PC Hardware and Software (Version 4.1)


Chapter 2 Exam - IT Essentials: PC Hardware and Software (Version 4.1)

jawaban
pertanyaan
1- compressed air
2- soft cloth
Which two tools are recommended for cleaning a PC? (Choose two.) 
Defrag
Which tool should be used if a user needs to optimize space on a hard drive? 
1- Antivirus software
2- Spyware Remover
Which two types of tools can help protect a computer from malicious attacks? (Choose two.) 
Disk Management
Which tool in Windows XP gives a technician access to initialize disks and create partitions?
Phillips-head screwdriver
Refer to the exhibit. Which type of tool is presented in the graphic?
touching an unpainted part of the computer case
How does a technician discharge static buildup?
System File Checker
Which Windows XP command-line utility scans the critical files of the operating system and replaces any files that have been corrupted?
1- Spyware Remover
2- Defrag
3- Disk Cleanup
The performance of a computer is reduced after it has been using the Internet. Which three tools could be run to try to improve the performance of the computer? (Choose three.)
digital multimeter
Refer to the exhibit. Which type of tool is shown in the graphic?
spike
Which condition refers to a sudden and dramatic increase in voltage, which is usually caused by lightning?
Turn off and remove the power source.
Which step should be performed first when servicing computer equipment?
1- antistatic wrist strap
2- antistatic mat
Which two tools can help protect against ESD? (Choose two.)
1- wireless phones
2- microwaves
Which two devices commonly affect wireless LANs? (Choose two.)
1- electrical storms
2- power lines
What are two significant sources of EMI? (Choose two.) 
to equalize the electrical charge between a person and the equipment
Why should an antistatic wrist strap be worn when working on electronic equipment? 
It provides reference material for similar problems when such problems are encountered in the future
Why is documentation of all services and repairs an important organizational tool for a technician?
1- batteries
2- monitors
3- printer toner cartridges
Which three computer components contain hazardous materials and require special handling for disposal? (Choose three.) 
Avoid using magnetized tools.
Which precaution should be taken when working around electronic devices?
compressed air
A technician has a room of computers which are running very hot. The technician discovers that the heat sinks in the computers are very dusty. What should the technician use to clean the heat sinks? 
CRT monitor
Which computer components must a technician never try to work on when wearing an antistatic wrist strap?


IT Essentials-Chapter 1: PC Hardware and Software (Version 4.1)

IT Essentials-Chapter 1: PC Hardware and Software (Version 4.1)

 Chapter 1 Exam - IT Essentials: PC Hardware and Software (Version 4.1)
jawaban
pertanyaan
63
How many FireWire devices can be supported by a single FireWire port?
Headphones 3- monitor 2- 1- printer
Which three devices are considered output devices? (Choose three.)
EEPROM
Which type of ROM can be reprogrammed with software while it is still physically installed in the computer?
It can supply power from the computer to devices
Which important feature is offered by the USB standard?
1394
 Which IEEE standard defines the FireWire technology
1- biometric authentication device
2- digital camera
Which two devices are considered input devices? (Choose two.)
BTX و  ATX
Which two form factors are commonly used to build a new computer? (Choose two.)
4-pin ،  6-pin
What are the two connector types for the 1394a interface? (Choose two.)
IRQ 1-
2- DMA
3- I/O address
Which three system resources are commonly used for communication between the CPU or memory and other components in the computer? (Choose three.)
RAID
Which technology would be best to use for drive redundancy and data protection?
LCD
A technician receives a complaint of poor image quality after the user changes the native resolution. While investigating the complaint, the technician discovers there is a mismatch between native mode and the native resolution of the peripheral. Which item is configured incorrectly?
1280 x 800
Refer to the exhibit. Based on the advertisement that is shown, what is the native resolution of this computer system?
DDR-400
Which memory module has a front side bus speed of 200 MHz?
IRQs
Which type of computer resources are direct lines to the processor and are used by computer components to request attention from the CPU?
PC hardware and software technician
A student has passed the CompTIA A+ certification exam. Based on this passing score, for which job is the student now qualified?
It instructs the computer how to process information
What is a function of the operating system in a computer?
to move the heat away from the CPU
What is the function of a fan on top of a heat sink?
1- the number of external or internal drive locations
2- the size of the motherboard and the power supply
What are two factors that must be considered when choosing a computer case? (Choose two.)
I = P/V = 100W/9V = 11.11A
A technician creates a simple circuit that has a 9 V light bulb attached to a 9 V battery. The power output of the light bulb is 100 W. Which equation should be used to calculate how much current in amps is required to achieve the full 100 W output from the 9 V bulb?
provides capability to share a keyboard, a mouse, USB devices, and speakers with multiple computers
What is a function of a KVM switch?