Practice Questions for LPIC 101

These are some questions for you to practice before you sit for your LPIC 101

Q1. Which of the following commands can be used to partition up a disk in preparation for installing the Linux operating system, or creating a disk for data storage?

a) admin

b) fdisk

c) format

d) mkfs

Q2. What command is used to reload the /etc/inittab file after it has been updated? Choose the most appropriate answer:

a) /sbin/init  q

b) /sbin/init  r

c) /sbin/init  s

d) /sbin/init  6

Q3. What kind of hardware is represented by the device name /dev/hda?

a) Sound Card

b) Modem

c) IDE Hard Drive

d) SCSI Hard Drive

e) SATA Hard Drive

Q4. Which process is referred to as the “mother of all processes” and always has

PID 1?

a) mother

b) admin

c) administrator

d) init

e) bios

Q5. What command line would reboot a running Linux system immediately, forcing

an fsck of every drive on reboot?

a) /sbin/shutdown –r –F now

b) /sbin/shutdown –h –F now

c) /sbin/shutdown

d) /sbin/shutdown –r –f now

e) /sbin/shutdown –t –f

Q6. If my current directory is /opt and I wish to run the command /opt/runme, what

command(s) could I type (assuming /opt is not in your $PATH)? (Choose two)

a) /opt/runme

b) ./runme

c) runme

d) opt/runme

e) ~/runme

Q7. Which commands can be used to perform a search and replace on a file or a

text stream?

a) sed

b) tr

c) search

d) cat

e) more

Q8. You need to troubleshoot a hardware issue. Which command would let you view the kernel ring buffer to see what hardware was just added?

a) cat /var/log/boot.log

b) head /var/log/messages
c) dmesg | less
d) tail lastlog

Q9. What character is used after a command line to indicate that the command
 should run in the background and return shell control to the user?

a) *
b) +
c) &
d) -
e) .

Q10. Which option to umask would set my default file permissions such that files are
created with these permissions: user has read/write, group has read/write, and
everyone else has read only?

a) umask 002
b) umask 022
c) umask 200
d) umask 220
e) umask 775


ANSWERS:

1) fdisk (b).
2)  /sbin/init  q (a).
3)  IDE Hard Drive (c).
4) init (d).
5) /sbin/shutdown –r –F now (a).
6) /opt/runme,./runme (a),(b).
7) sed (a).
8) dmesg | less (c).
9) & (c).
10) umask 022 (b).

SOFTWARE FOR EVERY NETWORK ENGINEER

Networking has been in the industry for quite some time now. Nowadays companies are investing money automating their network. Today companies like Cisco, Juniper, and Arista are moving towards Automation and the demand for the Automation engineers have increased. Network and System engineers need to upgrade themselves to the latest technology in the market.

With that said I would like to share some of the software or I would say necessary tools for a network or system engineer. 

Softwares -:

GNS3

It is the most important software for every network engineer out there and without a doubt, I would say that if you want to make a career in the networking. then this is the key for you. GNS3 has a marketplace from where you can download images of different vendors. You can actually connect your physical network to GNS3. Furthermore, you can import docker images into GNS3. Not only this you can add many appliances such as Network Automation which has Python pre-installed on it.you can download GNS3 from here

VMware

VMware, Inc. is a  subsidiary of Dell Technologies that provides cloud computing and platform virtualization software and services. It was the first commercially successful company to virtualize the x86 architecture.

Vmware is incorporated with a lot of different features that can be utilized in the networking. for ex. if we want to use GNS3 and do not want our computer RAM to be utilized then we can use VMware 

VMware ESXi (formerly ESX) is an enterprise-class, type-1 hypervisor developed by VMware for deploying and serving virtual computers. As a type-1 hypervisor, ESXi is not a software application that one installs in an operating system (OS); instead, it includes and integrates vital OS components, such as a kernel.

ESXi is more important for people who are sysadmins and be careful it is an operating system, not some software you can download.

VMware has the capability to run multiple operating systems at the same time so if you want to use Linux or mininet .

please do read more on this you can download VMware from here. 

Wireshark

Wireshark is the world's foremost and widely-used network protocol analyzer. It lets you see what's happening on your network at a microscopic level.

Wireshark captures packets in real time and displays them in human-readable format. Wireshark includes filters, color coding, and other features that let you dig deep into network traffic and inspect individual packets.

You can download Wireshark from its official website for free 

And simply integrate Wireshark with GNS3 also.

There are many features of Wireshark that are worth mentioning 

• Color coding
• Filtering packets
• inspecting packets 
• each bit filtering

Packet Tracer

Any person who wants to do big in networking should know how to work with packet tracer. it is one of the oldest and most used software in the world. Any person who is undergoing CCNA training will have to learn this software. Beginner's stepping stone in the networking industry.

Packet tracer has all the features inbuilt. you don't have to get IOS images and can also use packet analyzer by Cisco.

if you haven't used this software you can download it from here.There are tons of lecture and tutorials available on the internet go ahead and learn this awesome software.

PuTTy/SecureCRT

PuTTY is an SSH and telnet client, developed originally by Simon Tatham for the Windows platform. PuTTY is open source software that is available with source code and is developed and supported by a group of volunteers.

SecureCRT client for Windows, Mac, and Linux provides rock-solid terminal emulation for computing professionals, raising productivity with advanced session management and a host of ways to save time and streamline repetitive tasks. SecureCRT provides secure remote access, file transfer, and data tunneling for everyone in your organization.

Whether you are replacing Telnet or Terminal, or need a more capable secure remote access tool, SecureCRT is an application you can live in all day long. With the solid security of SSH, extensive session management, and advanced scripting, SecureCRT will help raise your productivity to the nth degree.

It is a paid software so you will be needing an activation key for using it so I will suggest you to use PuTTY.

Please share it with your friends if you like it and tell me how many use this software in the comment section.

                                    BY-:

Varun Narang

SecureCRT client for Windows, Mac, and Linux provides rock-solid terminal emulation for computing professionals.

10 Questions you really should know before going for your CCNA exam(200-125)

Cisco has changed its exam code. Now the new exam code is (200-125). The exam contains syllabus according to the rapid changes in the networking industry.if you want to view the syllabus then click here

So you really want to go into networking domain, before going any further try out these Questions which are according to the updated CCNA course(200-125)

 Questions -

1. Which command shows one large set of information one set for every neighbor?

a) show cdp neighbors

b) show ip brief

c) show runn

d) show cdp neighbors detail

2. Which MTU size can cause a baby giant error?

a) 1500

b) 9216

c) 1600

d) 1518

3. What is a dual stack?

a) network interfaces which can connect both router and switch.

b) network interfaces which can connect both IPv4 and IPv6

c) Which can connect both router and firewall

d) router to router connect

4. Which two features can dynamically assign IPv6 addresses?(choose two)

a) IPv6 stateless autoconfiguration

b) DHCP

c) NHRP

d) IPv6 stateful autoconfiguration

e)ISATAP tunneling

5. IN the cabling for a leased line, which of the following typically connects to a four-wire line provided by a telco?

a) Router serial interface without internal DSU/DSU

b) CSU/DSU

c) Router serial interface with internal transceiver

d) Switch serial interface

6. Which of the following fields in the HDLC header used by Cisco routers does Cisco add? beyond the ISO standard HDLC?

a) Flag

b) Type

c) Address

d) FCS

7. Which function does IP SLA ICMP ECHO operation perform to assist with troubleshooting?

a) one way is jitter measurement

b) congestion detection

c) hop-by-hop response time

d) packet loss detection

8. Refer to the exhibit. What is the result of setting the no login command?

Router# conf t

Router(config)#line vty 0 4

Router(config-line)#password Cisco

Router(config-line)#no login

a) Telnet access is denied.

b) Telnet access requires a new password at the first login.

c) Telnet access requires a new password.

d) no password is required for telnet access.

9. Which of the following answers list a valid number that can be used with standard numbered IP ACLs?(choose two answers)?

a) 1987

b) 2187

c) 187

d) 87

10. Which value indicates the distance from the NTP authoritative time source?

a) priority

b) layer

c) stratum

d) location

 Answers to the above questions

1. (d)

2. (d)

3. (b)

4. (a),(b)

5. (b)

6. (b)

7. (c)

8. (d)

9. (a),(d)

10. (c)

FOR ANY QUERIES AND QUESTIONS PLEASE LEAVE A COMMENT. I WILL BE POSTING MORE QUESTIONS VERRY SOON.

                                                        BY-:

 VARUN NARANG