communicating over the network chapter 2
Tài liệu Chapter 2 - Communicating over the Network CCNA Exploration 4.0 docx
Ngày tải lên :
12/12/2013, 14:15
... khoa - Website: www.bkacad.com
Chapter 2 - Communicating
over the Network
CCNA Exploration 4.0CCNA Exploration 4.0
End Devices and their Role on the Network
ã The network devices that people ... Devices and their Role on the Network
ã Intermediary devices to provide connectivity and to work behind the scenes to
ensure that data flows across the network.
ã These devices connect the individual ... set of rules for all
networks.
ã Using this research, the ISO created a network model that helps vendors
create networks that are compatible with other networks.
ã The Open System Interconnection...
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Tài liệu Chapter 6 - Addressing the Network – IPv4 pdf
Ngày tải lên :
22/12/2013, 13:17
... khoa - Website: www.bkacad.com 28
• Use the subnet mask and ANDing process to extract
the network address from the IP address.
Network portion and the role of the subnet mask
Học viện mạng ...
used in the network
ã Explain how addresses are assigned to networks by ISPs and
within networks by administrators
ã
Hc vin mng Bỏch khoa - Website: www.bkacad.com 2
ã Determine the network ... block
1 72. 16.0.0 /22
Học viện mạng Bách khoa - Website: www.bkacad.com 36
Calculate address
Học viện mạng Bách khoa - Website: www.bkacad.com 17
Testing the Network Layer
ã Describe the role...
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The network layer Addressing and routing
Ngày tải lên :
17/09/2012, 09:13
... 194. 12. 230. 128 /25 5 .25 5 .25 5.1 92 address range:
194. 12. 230. 129 (10 000001) has 194. 12. 230.190 (01 111 110)
- 194. 12. 230.1 92/ 255 .25 5 .25 5.1 92 in interconnection network address range:
194. 12. 230.193 ... 194. 12. 230.1
(00 000001) has 194. 12. 230. 62 (00 111110)
- Engineers in 194. 12. 230.64 /25 5 .25 5 .25 5.1 92 network address range: 194. 12. 230.65 (01
000001) has 194. 12. 230. 126 (01 111110)
- Commercial network ... from
194. 12. 230.130 to 194. 12. 230.140.
1. Propose a mask of sub -network for the network of company.
194. 12. 230.0 is a Class C address, the last byte must be used to encode the numbers of
sub-network...
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Securing the Network Infrastructure
Ngày tải lên :
17/09/2012, 10:43
... compromising the
information
–
A worm or virus could be introduced to the media,
potentially damaging the stored information and
infecting the network
Hardening Network Security Devices
ã
The final ... activity
ã
Network- based IDS monitors all network traffic instead
of only the activity on a computer
–
Typically located just behind the firewall
ã
Other IDS systems are based on behavior:
Watch network ... attached to a network
(also called a client)
–
Connected to a LAN and shares resources with other
workstations and network equipment
–
Can be used independently of the network and can
have their...
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Outsourcing the Network II - Green IT and SAN
Ngày tải lên :
17/09/2012, 10:43
... năng lượng lớn
1. Trung bình là 22 5W
2. Chi phí cho năng lượng gấp 4 lần Capex
3. Máy chủ tiêu thụ năng lượng tăng 9% mỗi năm
4. Số lượng máy ch tng 50% t 20 05 n 20 10
ã
Mỏy ch s dng tài nguyên ... giữa sáng kiến và
hiệu quả của nó
SAN solution
Hp nht vic lu tr
ã
SAN (Storage Area Network) v NAS (Network Attached Storage)
là hai cách để tổ chức lại một hệ thống vào trong một nguồn lưu ... nối sử dụng LAN hoặc WAN) đã phỏt trin theo cp s nhõn nhng nm
gn õy
ã
Qun lý a nn(nh Windows NT đ, UNIX, Novell NetWare, VMS v phn
mm c s d liu nh DB2 đ, Oracle, Informix đ, SQL Server) mụi...
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Báo cáo y học: "Use of chinese and western over-the-counter medications in Hong Kong"
Ngày tải lên :
25/10/2012, 10:06
... level Below
primary
12. 8 66 .2 21.1 p <
0.001
Primary 18.5 56.8 24 .7
Secondary 22 .8 56.5 20 .6
Tertiary 34.1 44.6 21 .2
Currently married Yes 22 .1 55.5 22 .4
No 22 .2 57.5 20 .3
Self reported health ... 19.9 61.9 18 .2 p <
0.001
Female 23 .9 51.7 24 .4
Age 15 -29 26 .9 57.3 15.8 p <
0.001
30-39 29 .4 50.8 19.7
40-49 24 .1 52. 4 23 .5
50-59 21 .9 56.0 22 .2
60-69 16.5 57.6 25 .9
70+ 12. 7 66.1 21 .3
Education ... Excellent
or very
good
23 .8 59 .2 17.1 p <
0.001
Good or
fair
22 .0 55.8 22 .2
poor 22 .0 55.4 22 .6
Self reported chronic disease
status
Yes 17.3 57.8 24 .9 p <
0.001
No 23 .8 55.5 20 .6
Chi Ho Chung...
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Báo cáo y học: "Why are some children with early onset of asthma getting better over the years" -aneuploid-prostate-cancer-cells-after-tmz-tmz-bioshuttle-treatment.html#post143974
Ngày tải lên :
26/10/2012, 09:48
... asymptomatic without needing ther-
apy for the rest of their lives, but asthma remission
also does exist ( 12) . The more severe the asthma is in
childhood the more likely it is that the disease will
persist ...
investigations of the maternal medical records at the
University Hospital, including PHC data of the
statements made by the mid-wife in her records of the
check-up of the mothers during the pregnancy ... or in PHC. The asthma diagnosis was set
at the Paediatric clinic at the University Hospital for
91.4% of the children in group A and for 95.1% of the
children in group NA, the others were...
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Lesson 3: Over the phone
Ngày tải lên :
19/10/2013, 03:15
... sign before the end of the week.
Chúng tôi cần ông ký trong tuần này.
Quý bạn đang theo dõi chương trình "Tiếng Anh Thương mại" của đài Úc Châu.
Lesson Three: Over the phone‟
Bài ... gets off the phone?
Could you ask him to call me
To call me
To call me?
Could you ask him to call me
When he gets off the phone?
Trần Hạnh hẹn gặp lại bạn trong Bài 4 để tiếp tục theo dõi ... when he gets off the
phone? It‟s quite urgent.
Vậy cô làm ơn yêu cầu Harvey gọi lại tôi sau khi ông ấy nói
chuyện xong được không? Chuyện này hơi gấp cô ạ.
Lesson 3: Over the phone
Bài...
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The Network Switching Subsystem
Ngày tải lên :
19/10/2013, 03:20
... hierarchy.
4
The Network Switching Subsystem
The NSS plays the central part in every mobile network. While the BSS pro-
vides the radio access for the MS, the various network elements within the NSS
assume ... deficiencies in the protocol between the MSC and
the VLR forced the manufacturers to implement proprietary solutions. That
is the reason the interface between the MSC and the VLR, the B-interface, ... forwards the triplets to the VLR, which uses them as
input parameters for authentication and ciphering.
The Glossary provides a detailed description of the authentication
procedure.
4 .2 Visitor...
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The Network Press - Encyclopedia of Networking - Second Edition
Ngày tải lên :
22/10/2013, 15:15
...
100BaseT4 network can be no further
apart than 20 5 meters—regardless of
whether the nodes are next to each
other.
The following variants of 100BaseT
Ethernet have been defined:
100BaseFX: Runs over ... its LSP, the
new version is broadcast and replaces
the older versions at each other router.
The scheme used to distribute the LSP
greatly influences the performance of
the routers. These types ... assume that any subnetworks
are under the control of network
administrators, so that the internet-
work administrator can concentrate
on the connections between networks
rather than those between...
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Look both ways before crossing the network
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22/10/2013, 18:15
... 303.470.4800.
125 727 1 12/ 023 00981
simple fact that dirty connectors are the
highest cause of poor performance and most
likely failure points in the network. Periodic
cleaning of the connector ... look at the overhead. But with-
out a VAM, it is still an intrusive solution
and doesn’t provide a true picture of the
network, only the specific point under test.
Cost roadblocks
Network operators ... without exposing the
other fiber to the risk of breaking and tak-
ing down service.
Many transmission equipment vendors
build in performance monitoring functions
into their equipment. There is a mistaken
notion...
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Lesson 4: Over the phone (continued)
Ngày tải lên :
23/10/2013, 01:15
... your proposal.
There are a couple of issues arising from your proposal.
Quí bạn đang theo dõi chương trình 'Tiếng AnhThương mại' của Đài Úc Châu.
Lesson 4: Over the phone continued ... chuyện qua Điện thoại (tiếp theo)
Xin bạn lắng nghe những từ ngữ và mẫu câu mới trong khi tiếp tục theo dõi đoạn
hội thoại bằng cả tiếng Anh lẫn tiếng Việt.
Hội thoại 2:
Edward:
…Just one ...
website của cơ quan này theo địa chỉ ames.net.au.
Thay mặt toàn ban tiếng Việt Đài Úc Châu, TH thân ái chào tạm biệt.
END OF LESSON 4
Lesson 4: Over the phone (continued)...
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Tài liệu Look both ways before crossing the network doc
Ngày tải lên :
10/12/2013, 16:15
... traffic. The pattern
is carried on the network or circuit
under test, then test equipment at the
receive point determines whether the
transmission is successful (without
errors). At this point, the ... granted
access to the rear, the other to the front.
For example, an ILEC hands off OC- 12
( 622 -Mbit/sec) optical bandwidth to
an Internet service provider (ISP); the
ISP will then split that signal ... choosing a VAM is the access to
the connectors. Dirty connectors are
the highest cause of poor performance
and the most likely failure points in the
network. Thus, periodic cleaning of
the connectors...
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Tài liệu Trên đỉnh núi của động Từ Thức(Over the top of Tu Thuc) pdf
Ngày tải lên :
12/12/2013, 20:15
...
Nga Sơn – Thanh Hóa March 1, 20 10
http://mba-programming.blogspot.com
http://mbaprogram.travellerspoint.com/ Page 1
Trên đỉnh núi của động Từ Thức
Over the top of Tu Thuc mountain
... Nga Sơn – Thanh Hóa March 1, 20 10
http://mba-programming.blogspot.com
http://mbaprogram.travellerspoint.com/ Page 10
Nga Sơn – Thanh Hóa March 1, 20 10
http://mba-programming.blogspot.com ...
Nga Sơn – Thanh Hóa March 1, 20 10
http://mba-programming.blogspot.com
http://mbaprogram.travellerspoint.com/ Page 8
Nga Sơn – Thanh Hóa March 1, 20 10
http://mba-programming.blogspot.com...
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Tài liệu Reduced Bend Radius Fiber into the Network docx
Ngày tải lên :
21/12/2013, 07:17
... from one end of the fiber to another
(see Figure 1). By improving the bend radius of optical
fiber, light entering the core is effectively reflected by the
cladding back into the core. Instead ... applications.
For standard optical fiber, the 1 625 nm to 1550 nm
wavelengths are the first to go when the cable is
wrapped around a mandrel. Preserving these wavelengths
around tighter bends ... refraction than the core, causing light to stay
within this core.
To achieve tighter bend radii, some constructions change
the Mode Field Diameter (MFD) the area across the core
of the fiber that...
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