ccna-4-modul5

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1. By default, how is IP traffic filtered in a Cisco router?

blocked in and out of all interfaces

blocked on all inbound interfaces, but permitted on all outbound interfaces

*****permitted in and out of all interfaces

blocked on all outbound interfaces, but permitted on all inbound interfaces

2. Which three parameters can ACLs use to filter traffic? (Choose three.)

packet size

*****protocol suite

*****source address

*****destination address

source router interface

destination router interface

3. How do Cisco standard ACLs filter traffic?

by destination UDP port

by protocol type

*****by source IP address

by source UDP port

by destination IP address

4. Which two statements are correct about extended ACLs? (Choose two)

Extended ACLs use a number range from 1-99.

Extended ACLs end with an implicit permit statement.

*****Extended ACLs evaluate the source and destination addresses.

*****Port numbers can be used to add greater definition to an ACL.

Multiple ACLs can be placed on the same interface as long as they are in the same direction.

5. Where should a standard access control list be placed?

close to the source

*****close to the destination

on an Ethernet port

on a serial port

ccna-4-modul6

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1. Which two statements about DSL are true? (Choose two.)

users are on a shared medium

uses RF signal transmission

*****local loop can be up to 3.5 miles (5.5km)

physical and data link layers are defined by DOCSIS

*****user connections are aggregated at a DSLAM located at the CO

2. Which two Layer 1 requirements are outlined in the Data-over-Cable Service Interface Specification (DOCSIS)? (Choose

two.)

*****channel widths

access method

maximum data rate

*****modulation techniques

compression techniques

3. Which two statements are valid solutions for a cable ISP to reduce congestion for users? (Choose two.)

use higher RF frequencies

*****allocate an additional channel

*****subdivide the network to reduce users on each segment

reduce the length of the local loop to 5.5 kilometers or less

use filters and splitters at the customer site to separate voice from data traffic

4. A technician has been asked to configure a broadband connection for a teleworker. The technician has been instructed that

all uploads and downloads for the connection must use existing phone lines. Which broadband technology should be used?

cable

*****DSL

ISDN

POTS

5. After conducting research to learn about common remote connection options for teleworkers, a network administrator has

decided to implement remote access over broadband to establish VPN connections over the public Internet. What is the result

of this solution?

A reliable connection is established at greater speeds than what is offered from dialup over POTS. Security is increased, but

username and password information are sent in plain text.

*****The connection has increased security and reliable connectivity. Users need a remote VPN router or VPN client

software.

Security and reliability are increased at a substantial loss in throughput, which is considered acceptable when supporting a

single user environment.

Reliability and security are increased without the need for additional equipment, when compared to dialup connections using

POTS.

ccna-4-modul7

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1. Refer to the exhibit. A network technician determines DHCP clients are not working properly. The clients are receiving IP

configuration information from a DHCP server configured on the router but cannot access the Internet. From the output in the

graphic, what is the most likely problem?

The DHCP server service is not enabled.

The inside interface for DCHP is not defined.

The DHCP pool is not bound to the interface.

*****The pool does not have a default router defined for the clients.

All the host addresses have been excluded from the DHCP pool.

2. Refer to the exhibit. On the basis of the configuration shown, how should the pool of the excluded addresses be assigned to

key hosts on the network, such as router interfaces, printers, and servers?

*****The addresses are statically assigned by the network administrator.

The DHCP server dynamically assigns the addresses.

The addresses must be listed under the DHCP pool of addresses before they are available for static assignment.

The addresses must be listed under the DHCP pool of addresses before they are available for dynamic assignment.

3. Refer to the exhibit. According to the output, how many addresses have been successfully assigned by this DHCP server?

1

2

6

7

*****8

9

4. What are two benefits of NAT? (Choose two.)

*****It saves public IP addresses.

*****It adds a degree of privacy and security to a network.

It increases routing performance.

It makes troubleshooting routing issues easier.

It makes tunneling with IPsec less complicated.

5. What is true regarding the differences between NAT and PAT?

PAT uses the word “overload” at the end of the access-list statement to share a single registered address.

Static NAT allows an unregistered address to map to multiple registered addresses.

Dynamic NAT allows hosts to receive the same global address each time external access is required.

*****PAT uses unique source port numbers to distinguish between translations.

ccna-4-modul8

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1. Which two pieces of information are typically found on a logical network diagram? (Choose two.)

cable types

connector types

*****interface identifiers

*****DLCI for virtual circuits

operating system versions

2. Excessive broadcasts are generally a symptom of a problem at which layer?

physical

*****data link

network

transport

3. What is one example of a physical layer problem?

incorrect encapsulation

incorrect STP configuration

incorrect ARP mapping

*****incorrect clock rate

4. Which two components should be taken into consideration when establishing a network baseline? (Choose two.)

*****information about the network design

IP addressing allocation on the network

requirements about the service provider setup

requirements for access control lists to regulate traffic

*****expected performance under normal operating conditions

5. Refer to the exhibit. Which two steps should be taken during the process of creating network documentation? (Choose two.)

Record the information about the devices discovered in the Campus network only.

*****Record the information about the devices discovered in the entire network, including the remote locations.

*****Transfer any information about the devices from the network configuration table that corresponds to a component of the topology diagram.

Transfer only the Layer 2 and Layer 3 information about the devices from the network configuration table that corresponds to a

component of the topology diagram.

Transfer the recorded information about the devices from the network configuration table gathered during peak network

utilization that corresponds to a component of the topology diagram.

ccna-4-final

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1. A technician has been asked to run Cisco SDM one-step lockdown on the router of a customer. What will be the result of this process?
Traffic is only forwarded from SDM-trusted Cisco routers.
Security testing is performed and the results are saved as a text file stored in NVRAM.
*****The router is tested for potential security problems and any necessary changes are made.

All traffic entering the router is quarantined and checked for viruses before being forwarded.

2. Refer to the exhibit. A network administrator is trying to configure a router to use SDM but it is not functioning correctly. What could be the problem?
The username and password are not configured correctly.
The authentication method is not configured correctly.
The HTTP timeout policy is not configured correctly.
*****The vtys are not configured correctly.

3. Refer to the exhibit. How is the TCP/IP configuration information specified by the default-router and dns-server commands made available?
The TCP/IP information is forwarded to a 10.0.1.3 to be supplied to DHCP clients.
*****The TCP/IP information is used by DHCP clients that are configured to request a configuration from R1.

The TCP/IP information is supplied to any DHCP client on the network connected to the FastEthernet 0/0 interface of R1.
The TCP/IP information is applied to each packet that enters R1 through the FastEthernet 0/0 interface that are hosts on the 10.0.1.0 /24 network except packets from addresses 10.0.1.2, 10.0.1.16, and 10.0.1.254.

4. What is a major characteristic of a worm?
malicious software that copies itself into other executable programs
tricks users into running the infected software
a set of computer instructions that lies dormant until triggered by a specific event
*****exploits vulnerabilities with the intent of propagating itself across a network

5. Refer to the exhibit. What can be concluded from the exhibited output of the debug ip nat command?
The 10.1.1.225 host is exchanging packets with the 192.168.0.10 host.
The native 10.1.200.254 address is being translated to 192.168.0.10.
*****The 192.168.0.0/24 network is the inside network.
Port address translation is in effect.

Menjebol password BIOS

assword BIOS memang sangat berguna untuk melindungi komputer Anda supaya tidak ada orang lain yang dapat mengganti konfigurasi komputer Anda. Tapi password tersebut bisa menjadi malapetaka jika Anda lupa. Nah, jika Anda lupa password BIOS Anda, di bawah ini kami tampilkan default password yang aslinya memang disediakan oleh pembuatnya untuk mengantisipasi kejadian password yang terlupakan. Yang perlu Anda lakukan adalah mencoba satu per satu password tersebut sampai Anda menemukannya

Menghilangkan panah pada shortcut

Kalau kita membuat shortcut dari suatu aplikasi atau pun directory pasti akan kita lihat sebuah panah kecil. Dari segi penampilan, panah yang menutupi sebagian icon tersebut sangat menjengkelkan. Apalagi jika kita ingin menonjolkan gambar icon tersebut. Untuk itu ada sebuah cara untuk menghapus panah tersebut sehingga penampilan icon kita lebih menarik. Caranya buka registry editor, hapus string value “IsShortcut” yang ada di dalam subkey “lnkfile” dan “piffile” pada key “HKEY_CLASSES_ROOT” dari registry windows anda.

Pengguna Internet Tembus Angka Fantastis

Internet telah diakses lebih dari satu milyar pengguna. Trafik terbesar dari Asia Pasifik, dan Facebook jadi situs yang paling cepat pertumbuhannya. Demikian hasil studi lembaga riset ComScore kemarin.

“Ini sejarah penting bagi dunia internet telah merata di seluruh dunia, “kata Chief Executive comScore, Magid Abrham, Dalam laporannya, ComScore memerinci, kawasan Asia Pasifik menempati peringkat pertama dengan jumlah pengakses paling banyak dengan persentase 41 persen dari satu milyar.

Jangan Takut Beli Ponsel Cina

Banyak orang belum seberapa percaya dengan handphone Cina. Maklum barang dari sana masih identik dengan barang bajakan. Tapi tidak ada salahnya kalau kita mencoba beli handphone Cina, karena banyak juga handphone Cina yang bagus. Berikut tips yang bisa Anda coba:

1. Perhatikan Konstruksi Bodi

Lihat konstruksi bodinya rapi atau tidak. Handphone Cina memiliki tingkat kualitas yang disebut KW.KW1 lebih bagus dari KW2 dan seterusnya. Tapi tidak ada acuan standarnya.

Mempercepat proses start up windows

Terkadang di komputer kita terdapat program atau service yang berjalan secara otomatis. Namun tidak semua program tersebut dibutuhkan saat itu. Program tsb dapat sementara dinonaktifkan agar tidak terlalu membebani windows. Sehingga komputer kita dapat bekerja lebih cepat.

Berikut tutorial untuk meningkatkan kinerja windows anda. Silahkan dicoba

I. Cara Pertama
Di desktop Klik start pilih Run, ketik msconfig, klik OK